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3 years ago

Simplify these expressions. a. 4x + 7x + (–x) b. –5yz + yz + 2yz

Mathematics

1 answer:

salantis [7]3 years ago

4 0

Answer:A. 10x. B. -2yz

Step-by-step explanation:

A. 4x+7x=11x

11x+(-x) = 11x-1x=10x

B. -5yz+yz=-4yz

-4yz+2yz=-2yz

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Anna35 [415]

Answer:

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Step-by-step explanation:

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2 years ago

Need help with number 26, multi-step!!

Rufina [12.5K]

Answer:

$204.11

Step-by-step explanation:

He is paying 70% of the original cost, so he is paying

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3 years ago

Ana Participated in each charity walk she raise $.25 and each 1/2 That she walked the first day and I walked 11 miles a second d

Tresset [83]

Question:

Ana participated in a charity walk. She raised $0.25 for each 1/2 mile that she walked.The first day Ana walked 11 miles.The second day, she walked 14 miles.How much money did Ana raised?

Answer:

Ana raised $ 12.5

Solution:

From given question,

First day walk = 11 miles

Second day walk = 14 miles

Let us first calculate the total distance she walked

Total distance = first day walk + second day walk

Total distance = 11 + 14 = 25 miles

Thus she walked for 25 miles

Given that,

She raised $0.25 for each 1/2 mile that she walked

$\frac{1}{2} \text{ mile} = 0.25 \text{ dollars }$

Therefore, for 1 mile we get,

$\frac{1}{2} \times 2 \text{ mile} = 0.25 \times 2 \text{ dollars }\\\\1 \text{ mile } = 0.5 \text{ dollars }$

Now calculate for 25 miles

$25 \text{ mile } = 25 \times 0.5 = 12.5 \text{ dollars }$

Thus she raised $ 12.5

4 0

3 years ago

I been stuck on dis anybody know it?

MrRa [10]

a. 180 degrees

b. 180 degrees

c. transitive property

d. m<3

e. m<3

Supplementary angles are angles that equal 180 degrees.

Transitive property : if two angles (segment) are each congruent to a third segment (angle) then they are both congruent to each other.

3 0

3 years ago

-2.2 + 0.3z= 3 -0.5z -0.8z what does z equal

wariber [46]

$-2.2 + 0.3z= 3 -0.5z -0.8z \\ \\ 0.3z - 2.2 = 3 - 0.5z - 0.8z \\ \\ 0.3z - 2.2 = 3 - 1.3z \\ \\ 0.3z = 3 - 1.3z + 2.2 \\ \\ 0.3z = -1.3z + 5.2 \\ \\ 0.3z + 1.3z = 5.2 \\ \\ 1.6z = 5.2 \\ \\ z = 3.25 \\ \\$

The final result is: z = 3.25.

3 0

3 years ago

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