3 years ago

Plz help with 1, 2, 3, 4, 8th grade math

1 answer:

5 0

you need to add for number one you need to subtract for number two you need to add for number 3 you need to subtract for number 4

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Can someone solve this problem for me? Show me your steps to solve this problem as well.

AveGali [126]

$\bf 3^x=81\qquad 
\begin{cases}
81=3\cdot 3\cdot 3\cdot 3\\
\qquad 3^4
\end{cases}\implies 3^x=3^4\implies x=4$

if their base is the same, the exponents must also be the same for the equation to be true.

5 0

3 years ago

I need help please with this question!!

Ira Lisetskai [31]

Sorry but where is the question

8 0

3 years ago

Simplify the expression. (−0.75x + 8) + (1.5x + 4.4) The simplified expression is

Len [333]

Simplify

-0.75x + 8 + 1.5x + 4.4

Collect like terms

(-0.75x + 1.5x) + (8 + 4.4)

Simplify

0.75x + 12.4

4 0

3 years ago

The school store sells pencils for $0.30 each, hats for $14.50 each, and binders for $3.20 each.

astraxan [27]

Answer: the answer is $29.9

Step-by-step explanation:

No, she wrong it will be less than $20

4 0

3 years ago

Read 2 more answers

As an estimation we are told 5 miles is 8 km. Convert 2.5 miles to km.

Digiron [165]

Answer:

$4km$

Step-by-step explanation:

In order to find the answer to this question you must simply divide.

$5m=8km$

$2.5m=4km$

$8\div2=4$

$5=2.5+2.5$

$=4km$

Hope this helps

7 0

3 years ago