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2 years ago

Find the first step in solving the equation. 4(x - 2) + 2x = 30

Mathematics

2 answers:

nalin [4]2 years ago

8 0

Step-by-step explanation:

Distribute the 4
Add like terms(If they're on the same side)
Do the opposite operation to get the -8 with the 30
Divide

Leto [7]2 years ago

5 0

Answer:

you always do the equation in the parentheses first

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Exact Form:

x = 19 /3

Decimal Form:

x = 6. 3

Mixed Number Form:

x = 6 /3

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Lisa's penny bank is 1/10 full. After she adds 440 pennies, it is 3/5 full. How many pennies can Lisa's bank hold?

aksik [14]

Answer:

Step-by-step explanation:

After the 440 pennies are added, the bank is 3/5 full. It started out 1/10 full, so

3/5 - 1/10 is the amount of space in the bank that the 440 pennies took up, or

1/2. Use proportions to solve this, with number of pennies on the top and the fraction of the bank that is filled on the bottom:

$\frac{440}{\frac{1}{2} }=\frac{x}{1}$

where x is the number of pennies (our unknown) that it will take to fill the bank (1). Cross multiply to get

$\frac{1}{2}x=440$

so x = 880

4 0

3 years ago

Simplify the expression 3.5(1.2x+0.8)-0.5(4.6-1.2x)

kumpel [21]

Answer:

here

4.8x+0.5

Sorry if im wrong

5 0

3 years ago

A grocery store, the number of customers arriving per hour is shown by the

Dafna11 [192]

F(x) = 2x +1.

Where x is the xth hour.

Therefore the 6th hour, x=6.

f(6) = 2*(6) +1
= 12 +1
=13. 13 Customers.
Cheers.

5 0

3 years ago

What is a 200yd football field in meters in Europe

timofeeve [1]

Answer:

180 meters

Step-by-step explanation:

100yd field is 90 meters so a 200yd field is 180 meters

8 0

3 years ago

What is 120 / 320 as decimal (fraction to decimal)

morpeh [17]

Answer:

3/8

Step-by-step explanation:

÷ both sides by 40 =

3/8

3 0

2 years ago