What would be the best method to solve the system of equations below?
6x+3y=21
2x−3y=−13
Answer:
Elimination
Step-by-step explanation:
+3y and -3y are opposites so they can cancel out. This would give you 8x=8 so now you know x=1. now substitute the 1 into an equation:
6(1)+3y=21
6+3y=21
3y=15
y=5
x=1
Cameron had $24 to spend on 3 paintbrushes for his art class. After buying them, Cameron had $3 left. How much did each of the paintbrushes cost?
Answer: each paintbrush cost 7 dollars
Step-by-step explanation: $24 - $3=$21. So then you divide $21 by 3
A mug holds 450 ml. How many mugs will be needed to fill up a bucket of 36 litres capacity?
please help me guys I will do anything
Answer:
80 mugs of 450 ml each is needed to fill up a bucket of 36 litres.
Step-by-step explanation:
Capacity of mug = 450 ml
Capacity of bucket = 36 litres
= (36 × 1000) ml [since, 1 litre = 1000 ml]
= 36000 ml
Therefore, number of mugs needed to fill the bucket = 36000/450
= 80
Hence, 80 mugs of 450 ml each is needed to fill up a bucket of 36 litres.
14 Type the correct answer in each box. Use numerals instead of words. a Ava, Lucas, and Maria are playing a game where they pass a pull-back toy to one another in a path that forms a right triangle. Ava sends the toy to Lucas. Then, Lucas sends the toy to Maria. Finally, Maria sends it back to Ava. The angle formed at Lucas' position measures 90° and the angle formed at Ava's position measures 40°. The distance from Ava to Lucas is 12 feet. Ava is trying to determine the other measures of the triangle created by the toy's path. Give each distance in feet rounded to the nearest tenths place. The distance from Maria to Ava is feet. The distance from Lucas to Maria is feet. The angle formed at Maria's position measures degrees.
Answer:
Maria–Ava: 15.7 feetLucas–Maria: 10.1 feetangle at Maria: 50°Step-by-step explanation:
The cosine and tangent functions are useful here. The relevant relations are ...
Cos = Adjacent/Hypotenuse
Tan = Opposite/Adjacent
__
The distance from Maria to Ava (ma) is the hypotenuse of the triangle, so we have ...
cos(40°) = 12/ma
ma = 12/cos(40°) ≈ 12/0.76604 ≈ 15.7 . . . feet
__
The distance from Lucas to Maria (ml) is the side opposite the given angle, so we have ...
tan(40°) = ml/12
ml = 12·tan(40°) ≈ 12·0.83910 ≈ 10.1 . . . feet
__
The angle formed at Maria's position is the complement of the other acute angle in the right triangle:
M = 90° -40° = 50°
In summary, ...
Maria–Ava: 15.7 feetLucas–Maria: 10.1 feetangle at Maria: 50°Answer:
Step-by-step explanation:
Answer:
Maria–Ava: 15.7 feet
Lucas–Maria: 10.1 feet
angle at Maria: 50°
Step-by-step explanation:
The cosine and tangent functions are useful here. The relevant relations are ...
Cos = Adjacent/Hypotenuse
Tan = Opposite/Adjacent
__
The distance from Maria to Ava (ma) is the hypotenuse of the triangle, so we have ...
cos(40°) = 12/ma
ma = 12/cos(40°) ≈ 12/0.76604 ≈ 15.7 . . . feet
__
The distance from Lucas to Maria (ml) is the side opposite the given angle, so we have ...
tan(40°) = ml/12
ml = 12·tan(40°) ≈ 12·0.83910 ≈ 10.1 . . . feet
__
The angle formed at Maria's position is the complement of the other acute angle in the right triangle:
M = 90° -40° = 50°
In summary, ...
Maria–Ava: 15.7 feet
Lucas–Maria: 10.1 feet
angle at Maria: 50°
covert 99 grams into pounds.
Answer:
0.218258lbs
Step-by-step explanation:
One gram is 0.00220462lbs. We can use multiplication to solve this problem... or a conversion calculator. For multiplication, simply multiply 0.00220462 by 99 and round if necessary.
Number line A -56 B -40 C 0 D 18 E 34 what is the length of line BE as shown on the number line
Answer:
I think the answer is 6 b/c I draw the line and I get the short line b/n 40 and 34. if u want to get it more draw and get the point
Clare bought a new pair of shorts for $ 13.75. This was 25% off the regular price. What was the original price? ( Round your answer to the nearest cent.)
Answer:
18
Step-by-step explanation:
13.5 × 100 ÷ 75
If you were given a large data sets such as the sales over the last year of Amazons top 100 customers what might you be able to do with these data? What might be the benefits of the describing the data? How would you display the data?
Answer:
The best thing to do with data such as sales over the last year of the top 1000 customers would be to answer questions like:
1) what products sell the most: This would help the marketing department,for example on targeting what items to push.
2) what groups of people buy what product: Again this would be targeting who buys what. We may discover that males prefer product A and females prefer product B. Or young customers prefer different products that older. This would help marketing also on targeting sales.
Step-by-step explanation:
Meredith bought a book that cause $18 and it was 16% off she paid $15.12 for the book Thomas bought a book that cost $18 and it was on sale for 84% off he also paid $15.12 explain why the prices were the same
HELPPPPPP PLEASEEEEE
How many more pumpkins have a mass between 999 and 121212 \text{kg}kgstart text, k, g, end text than between 000 and 333 \text{kg}kgstart text, k, g, end text?
Answer:
2 pumpkins
Step-by-step explanation:
Answer:2
Step-by-step explanation:
Solve.
11 = 4 x Z
11= 4 x z
[tex]\huge\textbf{Hey there!}[/tex]
[tex]\large\boxed{\mathbf{11 = 4\times z}}\\\large\boxed{\mathbf{\rightarrow 4\times z = z}}\\\large\boxed{\mathbf{\rightarrow 4z = 11}}\\\\\large\textbf{DIVIDE 4 to BOTH SIDES}\\\large\boxed{\mathbf{\rightarrow \dfrac{4z}{4} = \dfrac{11}{4}}}\\\bullet\large\textbf{ CANCEL out: }\bf{\dfrac{4}{4}}\large\textbf{ because it gives you 1}\\\bullet\large\textbf{ KEEP: }\bf\dfrac{11}{4}\large\textbf{ because it gives you the z-value}\\\\\large\textbf{SIMPLIFY IT!}\\\\\mathbf{z = \dfrac{11}{4 }\approx 2\dfrac{3}{4}}}[/tex]
[tex]\huge\textbf{Therefore, your answer is: }\\\huge\boxed{\mathsf{z = \dfrac{11}{4}\ or \ 2\dfrac{3}{4}}}\huge\checkmark[/tex]
[tex]\large\textbf{Either of those two should work because they are both}\\\large\textbf{equivalent to each other! }\heartsuit[/tex]
[tex]\huge\textbf{Good luck on assignment \& enjoy}\\\huge\textbf{your day!}[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
Answer:
[tex]11 = 4 \times z[/tex]
[tex]4 \times z = 11[/tex]
[tex]4z = 11[/tex]
[tex]z = \frac{11}{4} [/tex]
[tex]z = 2 \frac{3}{4} [/tex]
I don’t know all no help me out
Answer:
2 and 3 are 74, a and b is 106
Step-by-step explanation:
thanks for any help!
Answer:
I think the answer is A
Step-by-step explanation:
Write the number for twenty-nine million seven thousand.
Answer:
2907000
Step-by-step explanation:
Answer and Step-by-step explanation:
In order to solve this, you must look at the placements:
Millions, Thousands, Hundreds (in hundreds are: Tens, Ones)
Now that we know that, we can now determine what the answer is to this problem. Because we have 29 million, we fill this into the millions placement:
29, _ _ _, _ _ _
Then we fill in 7 thousand:
29,007, _ _ _
And because we have no hundreds, the rest are zeros.
The answer is: 29,007,000.
I hope this helps.
PLEASE ANSWER THIS ITS URGENT
Answer:
Option CExplanation:
First, I plotted both the lines on the graph, then I graphed the inequality. Please check out image. Looking at the image, we can tell that the graph matches with Graph-C. Hence, Option C is correct.
Hoped this helped!
Answer:
Graph CStep-by-step explanation:
We can solve it without actually plotting the inequalities.
Observations:
Both lines have positive slopes and both have same inequality symbol ⇒ ≤It means both shaded regions are below the lines and the lines are solid.The y-intercepts, the steeper line has b = - 3 and the other line has b = 2All the above observations are reflected on the graph C only.
please answer sir it is urgent
Answer:
3 is the correct answer...
10 decreased by 3x
O A. 10+ 3x
Ов. 10 — 3х
O C. 3x (10)
D.10 3x
O E. 3x – 10
Answer:
10 -3x
Step-by-step explanation:
Decreased means subtraction
10 -3x
Answer:
B
Step-by-step explanation:
because decrease mean minus............... ........
Question
In this polygon, all angles are right angles.
What is the area of this polygon?
Enter your answer in the box.
Answer:
do you have a picture of the polygon
Find the inverse function
Answer:
B
Step-by-step explanation:
A robot on mars tosses a rock upward with an initial velocity of 30ft/sec. The height of the rock, h(t) (in feet), is deifned by the function h(t) =-6.1t^2 + 30t +5 where t is the time in seconds after the rock is tossed. Find h(3) and interpret the meaning of the function value in terms of time and height.
Answer:
It's 5:5 on the interpre because of the function made on the robot
i need help urgenty 50 % of grade
Answer:
[tex]x\leq 2[/tex]
Step-by-step explanation:
[tex]4(x - 1)\leq \frac{x + 6}{2}[/tex]
[tex]4x - 4 \leq \frac{x + 6}{2}[/tex] multiply all terms by 2
[tex]2(4x) - 2(4)\leq 2(\frac{x + 6)}{2} )[/tex]
[tex]8x - 8 \leq x + 6[/tex]
[tex]8x - x -8 \leq 6[/tex]
[tex]7x - 8 \leq 6[/tex]
[tex]7x \leq 6 + 8[/tex]
[tex]7x\leq 14[/tex]
[tex]x\leq 2[/tex]
Answer:
C. x ≤ 2Step-by-step explanation:
4(x - 1) ≤ (x + 6) / 28(x - 1) ≤ x + 6 Multiply by 28x - 8 ≤ x + 6 Open parenthesis8x - x ≤ 8 + 6 Collect like term7x ≤ 14 Simplifyx ≤ 2 Divide by 7Correct choice is C
What is the area, in square feet, of the shape with a base of 8ft with 6.3 ft hight?
I need help on this !
Answer:
half
Step-by-step explanation:
Dividing a number by 2 is the same as multiplying it by 1/2. We can say the result is half the number's value.
How many points do you get if you make a shot from under the basket? (basketball)
Answer:
2
Step-by-step explanation:
because you are not behind the three point line
A rectangular room is 15 meters longer than it is wide, and it’s perimeter is 26 meters. Find the dimensions of the room
Answer:
the room is -1m by 14m
Step-by-step explanation:
what you do to find it is first find x.
the perimeter is 26, and one side is 15 meters longer than the other(twice).
So the equation is:
x + (x + 15) + x + (x + 15) = 26
2x + 2(x + 15) = 26
2x + 2x + 30 = 26
4x + 30 = 26
26 - 4x = 30
26 - 26 - 4x = 30 - 26
-4x = 4
-4x/-4 = 4/-4
x = -1
Now we have two sides of the room. Now we want the 15m longer ones...
-1 + 15 = 14
so the dimensions are -1 by 14, or -1x14
Hope this helps. if this is the best answer, mark Brainliest.
If not, hope it helps anyway.
Is there any other ways to solve this I really didn't get it
Answer: You got this kiddo!
Step-by-step explanation:
What is the exact equation you use to get this answer 21.56
Answer:
11 + 10.56
Step-by-step explanation:
PLS I NEED BRAINLIEST
Use the given information:
[tex]n = 20[/tex] , ∑[tex]x = 1570[/tex] , ∑[tex]x^{2} = 125696[/tex] , minimum = 60 , maximum = 100
Find the mean [tex]x^{-}[/tex]. Round your answer to a whole number.
Find s². Round your answer to a whole number.
Hey there mate :)
Answer with explanation attached as image in my answer. Click and Check it !
FINAL ANSWERS-Mean- 79
Mean- 79Variance - 129
~ Benjemin360
solve the system of equations using elimination
15q - 4r = 62
5q + 8r = 86
Answer:
q=6 r=7
Step-by-step explanation:
2(15q-4r=62)
30q-8r=124
5q + 8r = 86
35q=210
q=6
5(6)+8r=86
30+8r=86
8r=56
r=7
