4 years ago

8 more than twice a number d

Mathematics

1 answer:

Igoryamba4 years ago

6 0

Answer:

8+2d=2d+8

Step-by-step explanation:

You have to switch the order of the equation because whenever there are words like more than less than and more you switch the order of the original equation.

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When rounded to the nearest tenth, which of the following values equals 9.4?

Gre4nikov [31]

Answer:

i think B would be accurate

Step-by-step explanation:

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4 years ago

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Darla needs to purchase nine more stamps than envelops. Each stamp cost $0.10, and each envelope costs $0.13 . If she pays $2.51

sp2606 [1]

This is a systems of equations.

s = stamp, e = envelope

$\left \{ {{e + 9 = s} \atop {.1s+.13e=2.51}} \right.$

Substitute e + 9 for s.

.1(e + 9) + .13e = 2.51

Simplify.

.1e + .9 + .13e = 2.51

Simplify.

.14e + .9 = 2.51

Subtract .9 from both sides.

.14e = 1.61

Divide both sides by .14.

e = 11.5

Now, you can input e into the other equation.

11.5 + 9 = s

Simplify.

20.5 = s

s = 20.5, e = 11.5

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4 years ago

Please help me on this answer, I am very confused and don't know the correct steps to take. Solve

IRISSAK [1]

Answer:

102

Step-by-step explanation:

Since 2 + 8 = 10, then the cube root of 5x+2 = 8

Since 8×8×8=512, then 5x+2=512

5x=510, so x=102

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An angle measures 30 degrees.

scZoUnD [109]

Complimentary angels are angels that together add up to 90 degrees.

To find the measure of an angles compliment, simply subtract the degree you are given from 90.

90 degrees - 30 degrees = 60 degrees.

Hope this helps! :)

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Find the least common denominator

Sever21 [200]

Your answer is LCD 5 .

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