Seven less than a number is twenty (as an equation)

Answers

Answer 1

Answer:

You're expression is correct if it's asking for a number that is less than 7. But if the problem is asking for some number less than seven as in seven less some number, then it's 7-n. For example: 4 less than 7 is 7-4.

Hope this helps!

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Rewrite the radical as a rational exponent. the cube root of 2 to the seventh power

Answers

In converting the radical expression of a rational exponent of a rational number. First is to rewrite its form into fractional exponent and giving the answer of 2 to the power 7 over 3 and i hope this could add the knowledge of your learning, have a nice day.

Answer:

$2^{(7)/(3)}$

Step-by-step explanation:

The formula to change a radical to rational (fractional) exponent is given below:

$\sqrt[n]{a^(m)} =a^{(m)/(n)}$

It means that the denominator of the fraction (in the rational exponent) goes OUTSIDE the root sign and the numerator goes as power to the number.

Using this, we can write $\sqrt[3]{2^(7)}$ as $2^{(7)/(3)}$

Thus the rational exponent from is given by $2^{(7)/(3)}$

A professional athlete deposited an amount of money into a high-yield mutual fund that earns 14% annual simple interest. A second deposit, $2,400 more than the first, was placed in a certificate of deposit earning 8% annual simple interest. In one year, the total interest earned on both investments was $456. How much money was invested in the mutual fund?

Answers

Answer:

$1,200

Step-by-step explanation:

Let x be the amount of money deposited in the mutual fund. The interest earned by that investment can be determined as the amount deposited times the interest rate:

$I_(1) = x*0.14$

The value the second deposited can be determined as x+$2,400 and its interest earned is defined in the same manner as the first deposit's:

$I_(2) = (x+2400)*0.08$

The total interest on both investment equals the sum of both interests:

$456=I_(1)+I_(2)\n456=(x+2,400)*0.08 +x*0.14\nx=(456-192)/(0.22)\n x=1,200$

$1,200 were invested in the mutual fund.

Can someone do this it's hard I need help

Answers

10. G (one box below G; one left of D)
11. F (one box below F)
12. F

13. E to F and A to B
14. C to D and E to F
no diagram 2. sorry can't help with the rest :(

Kara is sorting buttons by lengths for a craft project.The line plot shows the length of each button.If Kara lines up all the 3/4-inche buttons,what would be the total length

Answers

Answer:

$2(1)/(4) inches.$

Step-by-step explanation:

Hi,

We see the plot line below, which shows that three crosses above $(3)/(4) - inch$ buttons, that means we have three such buttons available with us.

To find their total lengths, we have two methods:

We can add the lengths of all buttons, that means add $(3)/(4)$ thrice

Or simply multiply $(3)/(4)$ by three.

$(3)/(4) * 3\n = (3 * 3)/(4)\n= (9)/(4)$

changing this improper fraction into a mixed fraction: $2(1)/(4) inches.$ will be the total length of three buttons lined up.

Change 0.625 to a percent.

Answers

the answer is 62.5%
move the decimal two spots to the right

A manufacturer makes ball bearings out of molten steel. It takes 5.24 cubic centimeters of molten steel to make ? ball bearings that each have a diameter of 1 centimeter.

Answers

So we want to know how much ball bearings can be made with 5.24 cm^3 if one ball bearing has a diameter of 1 cm. We know that radius r=d/2=0.5cm So the volume V of one ball bearing is: V=(4/3)*pi*r^3 so V=(4/3)*3.14*(0.5)^3cm^3=0.524cm^3. Now we simply divide the volume of steel by the volume of the ball bearing: 5.24/0.524=10. So we can make 10 ball bearings from 5.24 cm^3 of steel

Answer: 10 ball bearings

Plato is annoying

Step-by-step explanation:

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