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o-na [289]
3 years ago
12

Find the unit rate

Mathematics
1 answer:
almond37 [142]3 years ago
3 0
The unit rate for the problem is 16
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Evaluate the expression for the given value of x.−4x + 7 for x = −4
docker41 [41]

Answer:

23

Step-by-step explanation:

-4x+7

-4(-4)+7=16+7=23

5 0
3 years ago
Read 2 more answers
0.3x+x=88000 what is x.
34kurt

Answer:

x =67692.30769

Step-by-step explanation:

0.3x+x=88000

Combine like terms

1.3x = 88000

Divide each side by 1.3

1.3x/1.3 = 88000/1.3

x = 880000/13

x =67692.30769

4 0
3 years ago
Please please help me with this
kompoz [17]

72degrees that the agngle its easy

3 0
3 years ago
5(2x-6)-4(x-7) simplify
Inga [223]

5(2x-6)-4(x-7)

distribute

10x - 30 -4x+28

combine like terms

6x-2

3 0
3 years ago
AKAJAXOSPAPXODAOAPA HELP
Leya [2.2K]

Answer:

He used 6 bananas at .50 which cost $3.00

12 oranges at .75 which cost $9.00 and

3 papayas at $1.25 which cost $3.75

Step-by-step explanation:

We can set up a system of equations using the information given.

b for banana, r for orange, p for papaya

b + r + p = 21. Also given r = 2b So substitute to simplify for calculating two unknowns:

b + 2b + p = 21 The number of items.

50b + 75(2b) +125p = 1575 The cost.

<em>I </em><em>multiplied</em><em> </em><em>everything</em><em> </em><em>by </em><em>100 </em><em>to </em><em>eliminate</em><em> </em><em>the</em><em> </em><em>decimals</em><em>.</em>

To solve by substituion, rewrite the first equation to get a value for p in terms of b

p = 21 - 3b

Substitute this value in the second equation and solve for b.

50b + 150b + 125(21–3b) = 1575

200b +2625 –375b = 1575 Subtract 2625 from both sides and combine the like terms:

–175b = 1575 –2625

–175b = –1050. Divide both sides by –175

b = 6

Substitute in the original equation to find the amount of each fruit:

b + r + p = 21

b = 6 bananas

r = 2b. 2(6) = 12 oranges. <em>I </em><em>used </em><em><u>r </u></em><em>so </em><em>as </em><em>not</em><em> to</em><em> </em><em>mix </em><em>up </em><em>o </em><em>with </em><em>0</em><em>.</em><em> </em>

6 + 12 + p = 21

p = 21 –18

p = 3 papayas

7 0
3 years ago
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