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4 years ago

60 POINTS, Please answer this question ASAP!

Mathematics

1 answer:

Dimas [21]4 years ago

7 0

Yes, of course.

Interior angles at each side are supplementary, so a trapezoid together with its rotation 180° makes a parallelogram. A parallelogram can always be used for tesselation.

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Solve (x-5)^2=3 Please help

makvit [3.9K]

A is the answer!!!!!!!!!!

8 0

3 years ago

Leticia charges $8 per hour to babysit. She babysat Friday night for 4 hours, and then she babysat again on Saturday. She earned

olganol [36]

Your answers are Equation A (8(4+x) = 72, and Answer C (5 hours).

1) Figure out how much of the total money she earned on Friday. 4*8= 32
2) She has 72 dollars total and 32 dollars were earned on Friday, meaning the rest was earned on Saturday. 72-32= 40
3) She earned 40 dollars on Saturday for 8 dollars an hour, so now you divide 40 by 8 and you get 5. She worked 5 hours on Saturday.

5 0

4 years ago

I need an answer soon, please! Whoever answers first will get Brainliest!!! Please no troll answers!

Colt1911 [192]

Answer:

x = 8, and y = 12

Step-by-step explanation:

There are 2 variables, so you need 2 equations to form a system of equations in two variables.

The upper left triangle has all angle measures given: 100, 2x + y, 5x + y. We know that the sum of the measures of the angles of a triangle is 180.

First equation:

100 + 2x + y + 5x + y = 180

Simplify:

7x + 2y = 80 (First equation)

Now we see that the upper and lower sides are parallel, so alternate interior angles are congruent. The angles measuring 2x + y and 5x - y are alternate interior angles and are congruent.

Second equation:

2x + y = 5x - y

Simplify:

3x - 2y = 0 (Second equation)

Now we use the first equation and the second equation as a system of simultaneous equations to solve for x and y.

7x + 2y = 80

3x - 2y = 0

Solve the second equation for 2x.

3x = 2y

Now replace 2y in the first equation with 3x.

7x + 3x = 80

10x = 80

x = 8

Replace x with 8 in the second equation.

3(8) - 2x = 0

24 = 2x

x = 12

Answer: x = 8, and y = 12

8 0

3 years ago

Read 2 more answers

Tell whether the two expressions are equivalent 5(h+7); 5h+35

Goryan [66]

Answer:

they are

Step-by-step explanation:

distribute the 5 into the parentheses. 5*h is 5h and 5*7 is 35. this results in 5h+35 which is equivalent

6 0

3 years ago

A loan of $36,000 is made at 6.75% interest, compounded annually. After how many years will the amount due reach $57,000 or more

irakobra [83]

Answer:

After 7.04 years the amount will reach $57,000 or more

Step-by-step explanation:

The rule of the compound interest is $A=P(1+\frac{r}{n})^{nt}$ , where

A is the new value

P is the initial value

r is the rate in decimal

n is the period of the time

t is the time

∵ A loan of $36,000 is made at 6.75% interest, compounded annually

∴ P = 36,000

∴ r = 6.75% = 6.75 ÷ 100 = 0.0675

∴ n = 1 ⇒ compounded annually

∵ The amount after t years will reach $57,000 or more

∴ A = 57,000

→ To find t substitute these values in the rule above

∵ 57,000 = 36,000 $(1+\frac{0.0675}{1})^{(1)(t)}$

∴ 57,000 = 36,000 $(1.0675)^{t}$

→ Divide both sides by 36,000

∵ $\frac{19}{12}$ = $(1.0675)^{t}$

→ Insert ㏒ in both sides

∴ ㏒( $\frac{19}{12}$ ) = ㏒ $(1.0675)^{t}$

→ Remember ㏒ $a^{n}$ = n ㏒( $a$ )

∵ ㏒( $\frac{19}{12}$ ) = t ㏒(1.0675)

→ Divide both sides by ㏒(1.0675)

∴ 7.035151337 = t

∴ t ≅ 7.04

∴ After 7.04 years the amount will reach $57,000 or more

4 0

3 years ago