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3 years ago

Help me Please to solve this problem

Mathematics

1 answer:

lozanna [386]3 years ago

6 0

Answer:

Step-by-step explanation:

to find the dollars multiply 22.50 by the hour and to find the hour divide the dollars with 22.50.

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Right now Seth's age is 4/5 the age of his brother Eric. Twenty-one years ago, Eric was twice as old as Seth. What are their age

lana [24]

Answer:

Present Time

Let X= Eric's age (4/5)X= Seth's age

Question: What are their ages now?________________________________________________________________________

Past (21 years ago)

X-21 =Eric's age (4/5)X-21=Seth's age

2*[4/5(X-21]=Eric's age

Therefore, X-21= 2*[4/5(X)-21]=Eric's age Substitution

_______________________________________________________________________

X-21= 8/5 X - 42 Solve for "X" by adding 42 to both sides.

X-21+42=(8/5) X

X+21 = (8/5)X Subtract "X" from both sides.

21=(3/5)X Multiply both sides of equation by reciprocal of (3/5), which is 5/3

21*(5/3)= X Finish the problem to find value of "X," which is Eric's age.

Then find 4/5 (X)= Seth's age

8 0

2 years ago

Read 2 more answers

Classify each pair of numbered angles. Drag and drop the descriptions into the boxes to correctly classify each pair of numbered

Leona [35]

(i) Pairs of neighboring angles are supplementary and opposite angles have the same measure.

(ii) The two angles formed by a line coming out of another line are supplementary.

<h3>How to analyze pairs of angles</h3>

(i) When two straight lines pass through each other, then two pairs of opposite angles are constructed. A pair with angles of $(3\cdot x + 52)^{\circ}$ and another pair with angles of $(2\cdot x + 2)^{\circ}$ , each pair of angles with different measures are supplementary. $\blacksquare$

(ii) When a straight line comes out of another straight line, from a point distinct to any endpoint of the former, then we construct two supplementary angles. The largest angle has a value of $(10\cdot x + 20)^{\circ}$ , whereas the smaller one has a value of $(6\cdot x + 8)^{\circ}$ . $\blacksquare$

To learn more on angles, we kindly invite to check this verified question: brainly.com/question/15767203

7 0

2 years ago

If x-3 = 10, then x =

aalyn [17]

Add 3 on both sides
x = 13
I hope this helps you!

6 0

3 years ago

Read 2 more answers

If a loaf of bread was priced $1.50 on one day and $1.20 the next, what is the percent decrease

babymother [125]

Answer:

20 percent decrease

Step-by-step explanation:

0.15 cents is 10 percent of 1.50, and that multiplied by 2 is 0.30 cents. 0.30 cents is equal to 20 percent, and the difference between 1.50 and 1.20 is 30 cents.

7 0

3 years ago

The circle below is center Ed at O. Decide which length,if any, is definitely the same as the length. a) AD. b) BC. Justify your

Mars2501 [29]

Answer:

Point O is the center of the circle.

Part (a)

$\overline{A\:\!F}$ is a chord.

$\overline{OD}$ is a segment of the radius and is perpendicular to $\overline{A\:\!F}$

If a radius is perpendicular to a chord, it bisects the chord (divides the chord into two equal parts).

Therefore, $\overline{AD}=\overline{DF}$

Part (b)

If $\overline{BE}$ was extended past point E to touch the circumference it would be a chord.

As $\overline{OC}$ is perpendicular to $\overline{BE}$ , it would bisect the chord, but as $\overline{BE}$ is only a portion of a chord, $\overline{OC}$ does not bisect $\overline{BE}$ .

Therefore, there is no length equal to $\overline{BC}$ .

5 0

2 years ago