2 years ago

Evaluate the expression when c=8 and d=7. 4d-c whats the answer?

Mathematics

1 answer:

11111nata11111 [884]2 years ago

8 0

Answer:

The answer is 20.

Step-by-step explanation:

4(d) - c

4(7) - c

28 - c

28 - 8

20 is the answer.

I hope this helps, have a nice day.

You might be interested in

Use the rules for long division to divide 262 by 9.

Pani-rosa [81]

The answer for this problem is b

4 0

2 years ago

Alex has collected apples. It has 40 boxes of 8.5 kg each and 6 sacks of 90kg each. Pack the apples in bags of 2.5 kg each. how

zimovet [89]

Answer:

40*8.5=340

6*90=540

total=880/2.5=352bags

3 0

2 years ago

What's the value of x if 7x-5 =5x+23

olya-2409 [2.1K]

7x-5=5x+23
7x-5x=23+5
2x=28
x=28/2
x=14

6 0

3 years ago

The half-life of a certain substance is 20 years. How much of a 100 gram sample will be left after 20 years?

cluponka [151]

$\bf \textit{Amount for Exponential Decay using Half-Life} \\\\ A=P\left( \frac{1}{2} \right)^{\frac{t}{h}}\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{initial amount}\dotfill &100\\ t=\textit{elapsed time}\dotfill &20\\ h=\textit{half-life}\dotfill &20 \end{cases} \\\\\\ A=100\left( \frac{1}{2} \right)^{\frac{20}{20}}\implies A=100\left( \frac{1}{2} \right)^1\implies A=50$

5 0

3 years ago

Read 2 more answers

12. The width of a rectangle is 16.55 inches. The length of the rectangle is half its width.

zepelin [54]

The answer is D

16.55 divide by 2= 8.275
8.275+8.275+16.55+16.55=49.65

4 0

3 years ago