All categories

4 years ago

Please help, thank u

Mathematics

1 answer:

const2013 [10]4 years ago

5 0

Answer:

First question, answer False. Second question, answer True.

Step-by-step explanation:

When any shape or line is put onto a scale factor other than 1 or -1, the size of the line will change by a factor.

Knowing that, the perimeter would change because the side lengths are all increased by a scale factor other than 1 and -1.

Question 1: False

However, angles never change by scale factors alone. This is because scale factors always leaves the new shape similar to the old shape.

Knowing this, the angles on the new shape would be the same as to the old shape.

Question 2: True

You might be interested in

Write a system of equations to describe the situation below, solve using elimination, and fill in

Andrej [43]

Answer: Child is $1 and Adult is $3, per person.

Step-by-step explanation:

We have two unknowns, so we need at least two equations. Let C and A stand for the price of a ticket for a child and an adult, respectively.

The income for Monday and Tuesday can be calculated:

Monday: 16C + 42A = $142

Tuesday: 24C + 26A = $102

Rearrange the second equation to isolate one of the variables. I'll pick C:

24C + 26A = $102

C = ($102 - 26A)/24

Now use this expression for C in the first equation

16C + 42A = $142

16(($102 - 26A)/24) + 42A = $142

(1632 - 416A)/24 + 42A = $142

(68 - 17.3333A + 42A = $142

24.6667A = 74

A = 3 [The price of an adult pool admission is $3]

Use this value in either equation to find the price of a child's admission:

24C + 26A = $102

24C + 26*($3) = $102

24C = 102 - 78

C = $1 [The price of a child's admission to the pool is $1]

Check to see if these prices satisfy both equations:

Monday: 16C + 42A = $142

Tuesday: 24C + 26A = $102

---

Monday: 16*(1) + 42*(3) = $142 ? YES

Tuesday: 24*(1) + 26*(3) = $102 ? YES

Child is $1 and Adult is $3, per person.

6 0

2 years ago

Jamal manages a game booth at the state fair. There is a railing along the perimeter of the rectangle. Write an expression for t

Katarina [22]

Answer

2(l+w)

Explanation

Rectangle is a fore sided figure of which two opposite sides are equal.

Let its longer side be l and its shorter side be w.

Perimeter is the distance all round.

perimeter = l + w + l + w

= l+l+w+w

= 2l + 2w

= 2(l + w)

6 0

3 years ago

Steve had 4848 48 48 chocolates but decided to give 88 8 8 chocolates to each of his ff f f coworkers. How many chocolates does

vredina [299]

Since the amount of coworkers would be the variable in this expression, the equation would be 48-8x

(X= number of coworkers)

5 0

3 years ago

A 1 lb. package has 10 hot dogs. How much of an ounce does each hot dog weigh.

mojhsa [17]

1.6 is the answer. 1 lb is equal to 16 ounces, you divide 16 by 10 and you will get 1.6, each hot dog is 1.6 ounces.

7 0

3 years ago

Mr hopper did the rest need help

Contact [7]

Let g = graph paper and r = ruler

1st equation: 5g + 30r = 40

2nd equation: 12g + 20r = 44

Multiply the 2nd equation by -1.5 to cancel out the r's

2nd equation: 12g + 20r = 44 x -1.5 = -18g - 30r = -66

Now add the 1st equation to that:

-18g + 5g = -13g

30r -30r = 0

40 -66 = -26

The new equation becomes -13g = -26

Divide both sides by -13

g = -26 / -13

g = 2

This means each pack of graph paper cost $2.

Now replace g with 2 in the first equation to solve for the cost of a rule:

5(2) + 30r = 40

Simplify:

10 + 30r = 40

Subtract 10 from each side:

30r = 30

Divide both sides by 30:

r = 30 / 30

r = 1

Each rule cost $1.

7 0

4 years ago

Read 2 more answers

Please help, thank u​

Please help, thank u