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2 years ago

3. Twice the sum of 10 and a number is 28. Find the number.

Mathematics

1 answer:

inysia [295]2 years ago

7 0

Answer:

Step-by-step explanation:

The equation is 2(10+x)=28 where x is the unknown number we are trying to find. Use distrubutive property to combine like terms. 2 times 10 is 20 and 2 times x is 2x. Now we have 20+2x = 28. What you do to one side you must do to the other. 20 minus 20 is 0. 28 minus 20 is 8. Now our equation is 2x is 8. To find 1 x we divided in half. 8/2 is 4 therefore the missing variable is 4.

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You buy items costing $1900 and finance the cost with a fixed installment loan for 24 months at 8% simple interest per year.

ddd [48]

9514 1404 393

Answer:

$304
$91.83

Step-by-step explanation:

1. The finance charge is found from the simple interest formula;

I = Prt

where P is the principal amount, r is the annual rate, and t is the number of years.

24 months is 2 years, so the interest charged is ...

I = $1900×0.08×2 = $304

The finance charge is $304.

2. The monthly payment will be the total amount due, divided by the number of months.

payment = ($1900 +304)/24 = $2204/24 ≈ $91.83

The monthly payment is $91.83.

6 0

3 years ago

Last week Anna received a pay check for $442.50. She noticed in the check stub that $47.30 of the money she earned had been with

Troyanec [42]

Answer:

Percentage of Taxes = 10.689 %

Step-by-step explanation:

Given that

Total earning of Anna is $442.50

The amount which is held with Taxes = $47.30

Now in terms of percentage

percentage of taxes from her total earning = $\frac{47.30}{442.50} times 100$

So % taxes = ( 0.106892) × 100

∴ Taxes percentage = 10.689 %

6 0

3 years ago

Determine which numbers could not be used to represent the probability of an event. Select all that apply. A. StartFraction 64 O

vova2212 [387]

Answer:

A. $\frac{64}{25}$ , because probability values cannot be greater than 1.

C. -1.5, because probability values cannot be less than 0.

Step-by-step explanation:

Probability is the extent to which an event is likely to happen. It ranges from 0(impossible) to 1(certain). Probability values can be written in decimal form or in fractional form.

The following numbers could not be used to represent the probability of an event.

A. $\frac{64}{25}$ , because probability values cannot be greater than 1.

C. -1.5, because probability values cannot be less than 0.

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3 years ago

Select the two values of x that are roots of this equation.

alina1380 [7]

C
;$3&;!/‘rnjakfhenfbwmdbx

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3 years ago

What times what gets you to 41

Viktor [21]

Answer:

1 x 41 = 41............….…...

7 0

3 years ago