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3 years ago

8

Help with some problems PLZ Help. This is not cheating My teacher told me to ask my mom but i don't have one, dads working. seri

ously help me

1 answer:

Oxana [17]3 years ago

8 0

Answer: what are ur problems

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Bob has 10 dollars. His parents took away 5 dollars because he did not do his chores. Then he got 25 more dollars from a friend.

Sauron [17]

Answer:

$30

Step-by-step explanation:

He first has 10 dollars. Then 5 is taken off.

So, 10-5=5

His friend gives him 25 more dollars

So, 25+5= 30

Hope this helped!

4 0

3 years ago

Doris made 80 cookies this week. She baked 4 less than three times the total she made last week. Which equation, when solved for

sertanlavr [38]

Answer:

The equation is $3x-4=80$

The value of x is 28 cookies

Step-by-step explanation:

Let

x ----> the number of cookies she baked last week

we know that

The number of cookies she baked last week multiplied by 3 minus 4 must be equal to 80 cookies

so

The linear equation that represent this situation is

$3x-4=80$

solve for x

$3x=80+4\\3x=84\\x=28\ cookies$

3 0

3 years ago

Subtract.<br><br> 7 1/5 − (−3/5)

mojhsa [17]

This would just be 7 1/5 + 3/5 since the negative sign gets distributed and makes (-3/5) into a positive number.

From there you have basic math and you get 7 4/5.

5 0

3 years ago

Read 2 more answers

The wheels on Darlene's car have on 11-inch radius. If the wheels are rotating at a rate of 378 rpm, find the linear speed in mi

elena-s [515]

Answer:

The linear speed in which Darlene is traveling is 24.74 miles per hour.

Step-by-step explanation:

The wheel experiments rolling, which is a combination of translation and rotation. The point where linear speed happens is located at geometrical center of the wheel and instantaneous center of rotation is located at the point of contact between wheel and ground. The linear speed ( $v$ ), measured in inches per second, is defined by following expression:

$v = R\cdot \omega$ (1)

Where:

$R$ - Radius of the wheel, measured in inches.

$\omega$ - Angular speed, measured in radians per second.

If we know that $R = 11\,in$ and $\omega \approx 39.584\,\frac{rad}{s}$ , then the linear speed, measured in miles per hour, in which Darlene is traveling is:

$v = 11\,in\times \frac{1\,mi}{63360\,in} \times 39.584\,\frac{rad}{s}\times \frac{3600\,s}{h}$

$v \approx 24.74\,\frac{mi}{h}$

The linear speed in which Darlene is traveling is 24.74 miles per hour.

8 0

3 years ago

Tia invests $2,500 at an interest rate of 4%, compounded quarterly, and another $2,500 at an interest rate of 3.75%, compounded

Radda [10]

I’m pretty sure the answer is A I hope that helps :)

5 0

2 years ago