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Semenov [28]
3 years ago
7

Help please....................

Mathematics
2 answers:
Darina [25.2K]3 years ago
6 0

Answer:

               

Step-by-step explanation:

mars1129 [50]3 years ago
6 0
That’s challenging!!
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The graph of a line passes through the points (0, 5) and (-10, 0). What is the equation of the line?
natta225 [31]
First find the slope:
y-y/x-x
5-0/0-(-10
5/+10
slope: 1/2
then use:
y-5. 1
--- = ---
x-0. 2
cross multiply.
2 (y-5)=1 (x-0)
2y-10=x
move the ten to the other side, switch the sign
2y=x+10
divide by 2
y=1/2x+5
final answer is
y=1/2x+5
5 0
3 years ago
Read 2 more answers
At a grocery store, the price of a watermelon is determined by how many pounds the watermelon weighs. The price of a watermelon
Alexxx [7]

Answer:

p=0.60w

Step-by-step explanation:

Let

p ----> the price of a watermelon in dollars

w ---> the weight of a watermelon in pounds

In this problem we have a proportional relationship

Remember that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y/x=k or y=kx

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

In this problem

p=kw

The value of the constant of proportionality k is the same that the unit rate

Find out the unit rate

Divide the total cost by the total weight

k=\frac{4.38}{7.3}=\$0.60\ per\ pound

substitute in the equation

p=0.60w

7 0
3 years ago
D-7 =-18<br> What’s the answer?
AlexFokin [52]

Answer:

D = - 9

Step-by-step explanation:

D - 7 = -18

D - 7 + 7 = -18 + 7

D = -9

5 0
3 years ago
Read 2 more answers
Inequality Match Up Lab
Artist 52 [7]
1. 2x+3<-3 = x<-3
You get this by subtracting 3 from both sides, which gives you -6. Then divide 2 from both sides.

2. -3x<-6 = x>2
You divide -3 from both sides. You must switch the sign because any time you multiply or divide a negative integer from both sides of an inequality the sign is switched.

3. -5x<5 = x>1
See number 2

4. 5-2x<11 = x>-3
Subtract 5 from both sides to get -2x<6. Then, divide both sides by -2 and switch the sign.

5. x+2<5 = x<3
Subtract 2 from both sides

6. 2-3x<5 = x>-1
Subtract 2 from both sides to get -3x<3. Then, divide -3 from both sides and switch the sign.
5 0
3 years ago
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ABCD is a parallelogram. Determine the measure of ∠B.
Dafna1 [17]
Measure B is 90 because 17x+=180/2
and x=5
when you plug that into 17x+5 you get 90
7 0
2 years ago
Read 2 more answers
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