3 years ago

Please help guys plleaasee

Mathematics

1 answer:

Nitella [24]3 years ago

5 0

Answer: 21

Step-by-step explanation:

You might be interested in

Jayden has $0.56 worth of pennies and nickels. He has a total of 20 pennies and nickels altogether. Determine the number of penn

alex41 [277]

Answer:

There are 9 nickels and 11 pennies

Step-by-step explanation:

Systems of equation:

x=nickels

y=pennies

0.56=0.05x+0.01y

x+y=20

8 0

3 years ago

I WILL GIVE BRAINLY HELP ME PLSSS

Gnom [1K]

Answer:

I believe (D)

Step-by-step explanation:

-5x + 7 = -13

-7 -7

-5x = -20

-5/-5 -20÷-5

x=4

3 0

3 years ago

Read 2 more answers

6 - 4x = 6x - 8x + 2

Vladimir [108]

Answer:

x = 2

Step-by-step explanation:

6 - 4x = 6x - 8x + 2

6 - 2 - 4x = 6x - 8x

4 - 4x = -2x

4 = 4x - 2x

4 = 2x

4/2 = x

2 = x

therefore x = 2

5 0

3 years ago

Read 2 more answers

URGENT! WILL GIVE BRAINLIEST IF CORRECT

cupoosta [38]

Answer:

The answer is 25.5.

Step-by-step explanation:

30% of $85 is 25.5.

4 0

3 years ago

Read 2 more answers

Plz explain how to do this

LUCKY_DIMON [66]

Here is the definition of a negative exponent.

For any non-zero value of a,

$a^{-n} = \dfrac{1}{a^n}$

Look at your problem and follow the definition.

$4^{-3} = \dfrac{1}{4^3}$

Since 4^3 = 4 * 4 * 4 = 64, we can now write:

$4^{-3} = \dfrac{1}{4^3} = \dfrac{1}{4 \times 4 \times 4} = \dfrac{1}{64}$

4 0

4 years ago