Mathematics College

Isosceles trapezoid ABCD has legs AB and CD, and base BC If.AB = 6 -7, BC = 2y - 4, and CD=7y - 20 find
the value of y.

Answers

Answer 1

Answer:

y = 13

Step-by-step explanation:

y = 13

Isosceles Trapezoid ABCD Has Legs AB And CD, And Base BC If.AB = 6 -7, BC = 2y - 4, And CD=7y - 20 Findthe

Related Questions

7.52 divided by 64 =

Answers

0.1174
You could use a calculator

PLEASE HELP ME!!!!!!!!!!!!!




Charlie saves $2 for every $9 he earns. Melody saves $4A for
every $12 she earns. Is Charlie's ratio of money saved to money
earned equivalent to Melody's ratio of money saved to money
earned? Explain.

Answers

Answer:

They are the same.

Step-by-step explanation:

pleaseeeee helppppp meee​

Answers

The answer is one half

Can someone help me with this problem ?

Answers

The answer is 83. 83+5=88. just subtract it.

Answer:

83

Step-by-step explanation:

You would subtract 5 from 88 to get Anjali's current age which is 83.

Two doctors is % of 25 doctors


=_____%

Answers

Answer:

50

Step-by-step explanation:

Answer:

I believe it is 5 percent

Step-by-step explanation:

Hope it helps and is right.

The chart below shows the rabbit and fox populations in boxerville over the last year. In which month was the rabbit population smallest?

Answers

Answer:

It is C. May

Step-by-step explanation:

Hope this helped have an amazing day!

In the month of may the rabbit population is smallest, option C is correct.

What is Graph?

Graph is a mathematical representation of a network and it describes the relationship between lines and points.

A bar graph is the representation of numerical data by rectangles of equal width and varying height.

In the given chart the red bars shows the population of rabbits

the blue bar shows the population of the fox

From the given graph we have to find the month where the rabbit population is smallest.

The red bar is smaller in the month of may which represents that the population is small.

Hence, in the month of may the rabbit population is smallest.

To learn more on Graph click:

https://brainly.com/question/17267403

#SPJ7

The following are shoe sizes of a group of bowlers: 6.5 ,7 ,7 ,7 ,7.5, 8, 8.6, 8.5, 9, 9.6, 10.5, 11. What is the mean shoe size of the bowlers?
A. 8.5
B. 8.3
C. 8.7
D. 8.0​

Answers

Answer:

8.3

Step-by-step explanation:

Add all of the shoe sizes together then divide by how many shoe sizes there are and you will get your answer

I Need help with 1-5

Answers

Answer:

1)=0

2)

[tex] \frac{ \sqrt{3} }{?2} [/tex]

3)

[tex] \sqrt{3} [/tex]

4)

[tex]2 + \sqrt{3} [/tex]

5) I don't know that one.

Solve the equation
[tex]-6 = x/8 + 4[/tex]

Answers

Answer:

You want to isolate for x -6= x/8+4

Subtract 4

-10=1/8* x

Divide by 1/8

x= -80

Please rate positively and give brainlist!

Answer:

x = -80

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define

-6 = x/8 + 4

Step 2: Solve for x

Subtract 4 on both sides:                    -10 = x/8Multiply 8 on both sides:                     -80 = xRewrite:                                                x = -80

Which are equivalent expressions?
Check all that are true.

A)8xy = 4x + 4y

B)x + 6x = 7x

C)x + 6y = 6xy

D)9x + 6y = 3(3x + 2y)

E)9a + 6b + 3c = 3(3a + 2b + c)

Answers

Answer:

DE

Step-by-step explanation:

D)9x + 6y = 3(3x + 2y)

E)9a + 6b + 3c = 3(3a + 2b + c)

there have the same concept

3*3x equals 9x and 3*3a is 9a

NEED BY TODAY PLEASE GET RIGHT

Answers

-5

30 + (-15) + (-10) + [-5] = 0

8. Iris wants to buy two necklaces, one for her sister and one for herself. The necklace for her sister costs $42.00, and the necklace for herself costs $28.00. The sales tax on the purchases is 8%. Find the total cost of Iris's purchases, including sales tax. If necessary, round your answer to the nearest cent. C $75.60 A $64.40 B $5.60 B D $70.00​

Answers

the answer is C!
Hope this helps

What is the equation of the new graph? Will mark brainlest

Answers

Answer:

c

Step-by-step explanation:

did the test

How can you express (15 + 30) as a multiple of a sum of whole numbers with no common factor?

A.
2 × (7.5 + 15)
B.
3 × (5 + 10)
C.
5 × (3 + 6)
D.
15 × (1 + 2)

Answers

Answer:b because the equation is right.

Step-by-step explanation:

Step-by-step explanation:

D.

15 × (1 + 2) is you're answer

Use the figure below for items 6-7.
Х,
8
w
Z
6. If WY + XZ = 28, what is PZ? 'hint: find WY first
7. If XP = 7x - 2 and PZ = 4x + 10, what is XZ?

Answers

6.
WY=16
XZ=12
PZ=6

7.
7x-2=4x+10
3x=12
x=4
XZ=11x+8
XZ=52

The domain of the function f(x) = -2x is restricted to the positive integers. Which values are elements of the range?

2


-4


0

-6


4


-2


6

Answers

9514 1404 393

Answer:

  {-6, -4, -2}

Step-by-step explanation:

If the domain is positive integers, the range is negative even integers. The only ones on the list are ...

  -2, -4, -6

What ordered pair corresponds to point D?
(in pic)
( , ) ?
i’ll give brainiest, don’t answer if you don’t know i need this due in less than 20 mins !!

Answers

Answer:

(2,0)

Step-by-step explanation:

point D is on point (2,0)

that is what it means

If b= 3, then b-2 is equivalent to

Answers

Answer:

1

Step-by-step explanation:

son

Use the substitution method.

b-2

3-2

= 1

Answer :

1

Graph y= -4/5x -7
Algebra

Answers

the person above answered already for you

Solve the following systems of equations algebraically. Write your answer in the form of (x, y).
y = 3x + 5 and y = x + 19

Answers


Let's solve your system by substitution.
y
=
3
x
+
5
;
y
=
x
+
19

Step: Solve
y
=
3
x
+
5
for y:
y
=
3
x
+
5

Step: Substitute
3
x
+
5
for
y
in
y
=
x
+
19
:
y
=
x
+
19
3
x
+
5
=
x
+
19
3
x
+
5
+
−
x
=
x
+
19
+
−
x
(Add -x to both sides)
2
x
+
5
=
19
2
x
+
5
+
−
5
=
19
+
−
5
(Add -5 to both sides)
2
x
=
14
2
x
2
=
14
2
(Divide both sides by 2)
x
=
7

Step: Substitute
7
for
x
in
y
=
3
x
+
5
:
y
=
3
x
+
5
y
=
(
3
)
(
7
)
+
5
y
=
26
(Simplify both sides of the equation)

Answer:
x
=
7
and
y
=
26

use the table of values to explain if x and y are in a proportional relationship.

Answers

Answer:

Yes, they are in a porpotional relationship.

Step-by-step explanation:

Twice a number is 42 less than five times a number. What is the number?

Answers

Answer:

21

Step-by-step explanation:

I am 90% sure but tell me if i'm wrong

There are 3 fourth grade clases with a total of 90 scholars. 2/5 of the scholars have a sister. 1/2 of the scholars have a brother. How many scholars have a sisters?​

Answers

Answer:

There are 36 scholars who have a sister.

Step-by-step explanation:

Given that:

Total number of scholars in classes = 90

Fraction of scholars who have a sister = 2/5

Fraction of scholars who have a brother = 1/2

Number of scholars who have sisters = 2/5 of 90

Number of scholars who have sisters = [tex]\frac{2}{5}*90[/tex]

Number of scholars who have sisters = 36

Hence,

There are 36 scholars who have a sisters.

WORTH 100 POINTS!

Gerry and Tony live 11 miles apart. Gerry leaves his home at 2:00 PM and bikes toward Tony's house at 25 miles/hour. At the same time, Tony leaves his home and bikes toward Gerry's house at 30 miles/hour. They wave as they pass each other. As soon as each boy reaches the others' home, they turn back around towards their own homes. This time, they stop when they see each other. How far are they from Gerry's home when they stop?

Please write an equation or more than one equation using Distance=Rate*Time.

Answers

Answer:

7miles

equations shown in work image below

work shown on the paper with more explanations because text is hard to write equations (sorry I used km but it is miles for your problem.)

:) please give a heart for thanks

and brainliest crown :)

Step-by-step explanation:

For both d=r*t

Each bikes to others house and leave at the same time so for Tony,

11 = 30*t

t= 11/30 hours

for Gerry,

11 = 25*t

t= 11/25 hours

Comparing these, with LCD,

Tony's time is 55/150

Gerry's time is 66/150

So Tony got to Gerry's house 11/150 hours quicker than Gerry got to Tony's house.

Now they turn around and head back toward each other. If they leave at the same exact time, the elapsed time for each until they met would be the same so t (for tony) = t (for gerry), but Tony got a head start.

We start the stopwatch when Gerry turns around 11/150 hours after Tony has turned around. If Gerry's time to where they meet from Tony's house t(gerry), then Tony's time from Gerry's house is t(gerry) + 11/150

Step-by-step explanation:

For both d=r*t

Each bikes to others house and leave at the same time so for Tony,

11 = 30*t

t= 11/30 hours

for Gerry,

11 = 25*t

t= 11/25 hours

Comparing these, with LCD,

Tony's time is 55/150

Gerry's time is 66/150

So Tony got to Gerry's house 11/150 hours quicker than Gerry got to Tony's house.

Now they turn around and head back toward each other. If they leave at the same exact time, the elapsed time for each until they met would be the same so t (for tony) = t (for gerry), but Tony got a head start.

We start the stopwatch when Gerry turns around 11/150 hours after Tony has turned around. If Gerry's time to where they meet from Tony's house t(gerry), then Tony's time from Gerry's house is t(gerry) + 11/150

Step-by-step explanation:

pick her as the brainliest

2x+y=42
8x+7y=36
Using the process of eliminations.

Answers

Answer:

x=43,y=-44

Step-by-step explanation:

hey i hope it helps you

2x+y=42(7)

8x+7y=36(1)

14x+7y=294

8x+7y=36

6x=258

divide both sides by 6

x=43

to get y

2x+y=42

equate x=43

8(43)+7y=36

344+7y=36

344-36=7y

308=7y

divide both sides by 7

y=-44

Ghidu it g get stuck didjdgef

Answers

Answer:

It would be a

Step-by-step explanation:

the difference is 4/8 but simplified it is 1/2

Which expression uses the associative property to make it easier to evaluate 6(3/2x1/5) ?
A: 6(2/3x1/5
B: 6(1/5x3/2)
C: (3/2x1/5)6
D: (6x3/2)1/5

Answers

I think the answer is B but I’m not sure, sorry if i got it wrong,

have a good day and have a good Christmas

What is it? A or B I've been stuck for a while please help

Answers

Answer:

Correct choice: B

Step-by-step explanation:

System of non-linear equations

It's given the following system of equations:

[tex]y=x^2+3x+5[/tex]

[tex]y=x+13[/tex]

We'll use the substitution method. Substituting y from the first equation into the second equation, we have:

[tex]x^2+3x+5=x+13[/tex]

Moving all terms to the left side:

[tex]x^2+3x+5-x-13=0[/tex]

Simplifying:

[tex]x^2+2x-8=0[/tex]

Factoring:

[tex](x+4)(x-2)=0[/tex]

There are two solutions:

x=-4, x=2

The first solution gives a value for y:

y=-4+13=9

First solution: (-4,9)

The second solution gives a value for y:

y=2+13=15

Second solution: (2,15)

Correct choice: B

I think the correct answer choice is B

Mr.Williams' physical education class lasts 7/8 hours. How many minutes are not spent on instructions? playing game:1/2, instructions: 1/5, warm up and cool down:3/10

Answers

Answer:

I believe the answer is 42 minutes :)

I need help with this

Answers

Answer:

D

Step-by-step explanation:

maybe try d? i really don’t know
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