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3 years ago

Molly has $3 in her wallet if this is 10% of her monthly allowance what is your monthly allowance

Mathematics

2 answers:

Marina CMI [18]3 years ago

8 0

She gets $30 dollars a month as her allowance

Her allowance in a year would be 360

geniusboy [140]3 years ago

4 0

Her monthly allowance is $30.

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**A rock dropped from a 100 foot tower.

mars1129 [50]

Answer:

2.83 s

Step-by-step explanation:

We are given that

$h(t)=-16t^2+10t+100$

When a rock reached the ground then h(t)=0

$-16t^2+10t+100=0$

$16t^2-10t-100=0$

Using quadratic formula

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

$t=\frac{10\pm\sqrt{(-10)^2-4\times 16\times (-100)}}{2(16)}$

$t=\frac{10\pm\sqrt{100+6400}}{32}$

$t=\frac{10+\sqrt{6500}}{32}=2.83$

$t=\frac{10-\sqrt{6500}}{32}=-2.2$

Time cannot be negative .Therefore, negative value of t can not be possible.

Hence, the rock takes 2.83 sec to reach the ground.

8 0

4 years ago

45 + 60 = 15 x ___ + 15 x ___

tia_tia [17]

Answer:45+60=15x+15x

Step 1: Simplify both sides of the equation.

45+60=15x+15x

(45+60)=(15x+15x)(Combine Like Terms)

105=30x

Step 2: Flip the equation.

30x=105

Step 3: Divide both sides by 30.

30x/30= 105/30

x= 7/2

Answer:

x= 7/2

may i have brainliest please

3 0

3 years ago

Write the fraction in simplest form of 6/20.

nikklg [1K]

$\dfrac{6}{20}=\dfrac{6:2}{20:2}=\dfrac{3}{10}$

8 0

3 years ago

A quart of stain covers 100 square feet. How many quarts should you buy to stain the ramp? (Assume you do not have to stain the

BartSMP [9]

How large is the ramp?

5 0

3 years ago

Marta walked at 3.9 miles per hour for 0.72 hours. How far did she walk

VLD [36.1K]

She walked 2.808 miles.
0.72 seconds   ==>   0.00078 miles
0.72 minutes    ==>   0.0468 miles
0.72 hours   ==>      2.808 miles
Hope that helped.

5 0

3 years ago