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4 years ago

9

Montrose Elementary School purchase three two backpacks for $17 each what is the responsible estimate to for the total of the co

st of backpack

1 answer:

Harman [31]4 years ago

3 0

I don't understand three or two book bags but if it's 2 bookbags then 8.50 if it's 3 bookbags then 5.66 each

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The table shows the height of water in a pool as it is being filled. The slope of the line through the points is 2. Which statem

Softa [21]

Answer:

Step-by-step explanation:

Answer:

A) The height of the water increases 2 inches per minute.

Step-by-step explanation:

Slope is the rate of change of height

m = (16 - 12)/(4 - 2) = 4/2 = 2

2 inch per min

Positive slope implies increase

7 0

3 years ago

For the quadratic equation 3x^2-18x-21=0, x1 and x2 are the roots. Find:

givi [52]

(x_1+x_2)=-b/a=18/3=6

x_1x_2=c/a=-21/3=-7

So

(x_1+x_2)²-2x_1x_2=x_1^2+x2²
x1²+x2²=(6)²-2(-7)=36+14=50

(x_1-x_2)²

x1²+x2²-2x_1x2
50+14
64

x_1-x_2=8

3 0

3 years ago

Read 2 more answers

M is the midpoint of YZ. If YM = x + 3, and YZ = 3x -1, find MZ

Elenna [48]

2(x+3)= 3x-1
2x+6=3x-1
X=7
Therefore
YM = 7+3= 10
And by definition of midpoint YM=MZ so MZ=10

3 0

3 years ago

Mr. and Mrs. Simpson went to two movies. The first movie lasted 2 1− 3hours and the second one lasted 1 4− 5hours. How much long

Morgarella [4.7K]

Answer:

11

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Gary bought 32 lb of potting soil this week this amount is 6 lb more than twice the amount of potting soil he bought last week a

lys-0071 [83]

Let the amount of potting soil bought last week be $x$

We know that this week's amount is 32 lb
We also know that this week's amount is double the amount of last week's plus 6 lb

So we write the equation:
$32 = 2x+6$

Solving this equation:
$32=2x+6$ ⇒ subtracting 6 from both sides
$32-6=2x+6-6$
$26=2x$ ⇒ Dividing both sides by 2
$\frac{26}{2}= \frac{2x}{2}$
$13=x$

The answer is: 13

4 0

3 years ago