THIS IS 8TH GRADE MATH (Pre-Algebra).

1 answer:

3 0

First you need to set up a formula. Underline all of your givens:

Spent 1/2 on clothes
$6 more for washing windows
Ended with $10.

now you need to set up an equation.

You know she ended up with $10. So that will be what it equals. Then you know that she earned $6 in addition to her allowance. So this would be (x= allowance) (x+6)/2 = 10.

Now you need to solve for x.
Multiply both sides by 2.

x+6=20
Now subtract both sides by 6 to get x alone:

x=$14

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Which situation is most likely to show a constant rate of change?

Wewaii [24]

Probably d as the the temperature outside is unpredictable and the we know the time is always going up

6 0

2 years ago

Consider the figure in the diagram above. ABJK is a rectangle. There are two semicircles cut out of the rectangle. AB=8cm; AJ=18

RUDIKE [14]

First find the area of the rectangle, then remove the circular area.

AB * AJ = 8 * 18 = 144 sq cm

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= $\pi 4^{2}$
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3 0

3 years ago

Print Version

san4es73 [151]

Answer:

$9450

Step-by-step explanation:

We will use compound interest formula:

$F=P(1+r)^t$

Where

F is future amount [what we want to figure out]

P is present amount [9000]

r is rate of interest [since we want for 6 months, the annual interest divided by 2 is r. So r = 10/2 = 5% or 0.05]

t is the time [ the time period is for 6 months so t = 1 since we already converted the interest rate to 6 month chunk]

Putting in formula, we get:

$F=P(1+r)^t\\F=9000(1+0.05)^1\\F=9000(1.05)\\F=9450$

6 0

3 years ago

Is 1500 lb bigger than 2 ton

levacccp [35]

No one ton is 1200lbs so 2 tons is 2400lbs so 1500lbs<2400lbs.

6 0

2 years ago

Ayudaaaaa nesesito que lo conviertan a como se pronuncia

tiny-mole [99]

please___________________

4 0

3 years ago