3 years ago

13- 0.7w + 8x when w = 12 and x = 1/2

Mathematics

1 answer:

cupoosta [38]3 years ago

8 0

Simplify the expression and you get: 8.6
Hope this helps!

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Ahmad had 6/7 of a spool of yarn. He used 2/5 of his yarn for a project. What fraction of the spool was used for the project?

GaryK [48]

Answer:

$\dfrac{12}{35}$

Step-by-step explanation:

2/5 ths of 6/7 ths:

$\implies \dfrac67 \times \dfrac25=\dfrac{6\times 2}{7\times5}=\dfrac{12}{35}$

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2 years ago

Mr Thompson had a balance of $283.12 in his checking account at the beginning of the month he wrote checks for $203.09, $7.56, $

Andru [333]

Answer:b

Step-by-step explanation:

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3 years ago

Read 2 more answers

Simplify a⁵ × (a³)²

FrozenT [24]

Answer:

$a^{11}$

Step-by-step explanation:

In solving for a⁵ × (a³)², we need to follow the rules of PEMDAS

Therefore, your equation would look like this:

a⁵ × (a³)² = a⁵ × $a^{6\\$

When two variables are the same, we add their exponents when multiplying and we would subtract them if we divided.

With that information, your final answer would be

$a^{11}$ as 5+6 = 11

Hope this Helps!

3 0

3 years ago

if two angles of a triangle have measures of 42 degrees and 20 degrees what is the measure of the third

Mila [183]

Every triangle has an angle measure of 180 degrees.

so 42+20+x (where x is the measure of the third angle)=180

Combine like terms.

62+x=180

Subtract 62 from both sides

x=118.

3 0

3 years ago

A shipment of 40 fancy calculators contains 3 defective units. What is the probability if a college bookstore buys 20 calculator

JulsSmile [24]

Answer:

38.46%

Step-by-step explanation:

There are no names or marking that can make the calculator look different, so the order is not important. Then we should use a combination to solve this problem.

There are 40 calculators in one shipment, 37 of them good items and 3 of them are defect items. We need to choose 19 good calculators and 1 defect calculator. The number of ways to do that will be:

$\frac{37}{19}$ * $\frac{3}{1}$ = 37! $\frac{37!}{19!(37-19!)} * \frac{3!}{1!(3-1)!}$ = 53017895700

The number of possible ways to choose 20 calculators out of 40 calculators will be:

$\frac{40}{20}$ = $\frac{40!}{20!(40-20!)}$ =137846528820

The chance will be: 53017895700/ 137846528820 = 0.3846= 38.46%

4 0

3 years ago