MATHEMATICS MIDDLE SCHOOL

Help I don’t know how to do this

Answers

Answer 1

Answer:

The percent change is 175%

Step-by-step explanation:

Given

8 is increased to 22

The formula for percent change is given by:

$Percent\ change = (amount\ of\ change)/(original\ amount) * 100$

Amount of change = 22-8= 14

So,

Percent change will be calculated as:

$Percent\ change = (14)/(8) * 100\n= 1.75 * 100\n= 175\%$

The percent change is 175%

Keywords: Percent change, percentage

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Using the given points and line, determine the slope of the line. (-3, 0) and (2, 7) slope = -7/5 slope = -5/7 slope = 5/7 slope = 7/5
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Find 3/7 of answer plz
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If you multiply me by 7 ,add 1 and divide by 4 you get nine what number am i

Find the probability of spinning each of the following P(not 7)

Answers

mabee 6 [need more examples]

How do you divide 49p in the ratio 4 : 2 : 1

Answers

4+2+1=7 units

49p/7=7p=1 unit
4 units=4 times 7p=28p
2 units=2 times 7p=14p
1 unit=1 times 7p=7p

so they are
4:2:1=28p:14p:7o

My HomeworkIndependent practice
eHelp
Go online for Step-by-Step Solutions
Find the area of each figure. Round to the nearest tenth if
necessary.
(Example
(02 cm
12 cm
6 yd
4.5 cm
16 yd
8 yd
2 cm
show) 24 yd
5 cm
1 m.
15 c
15 m

Answers

Answer:

1. 64 cm²

2. 240 yard²

3. 85.13 cm²

4. 193.36 m²

Step-by-step explanation:

Ques 1: We are given two rectangle with dimensions,

Length = 12 cm, Width = 4.5 cm and Length = 5 cm, Width = 2 cm.

As, we know, Area of a rectangle = Length × Width

So, we have,

Area of 1st rectangle = 12 × 4.5 = 54 cm²

Area of 2nd rectangle = 5 × 2 = 10 cm²

Thus, the total area of the figure = 54 + 10 = 64 cm²

Ques 2: We are given a triangle and a rectangle with dimensions,

Triangle: Base = 24-12 = 12 yd and Height = 8 yd

As, Area of a triangle = $(1)/(2) (Base * Height)$

i.e. Area of the triangle = $(1)/(2) (12* 8)$

i.e. Area of the triangle = $(1)/(2)* 96$

i.e. Area of the triangle = 48 yard²

Rectangle: Length = 24 yd, Width = 8 yd

As, we know, Area of a rectangle = Length × Width

i.e. Area of a rectangle = 24 × 8 = 192 yard²

So, the total area of the figure = 48 + 192 = 240 yard².

Ques 3: We are given a triangle and a semi-circle with dimensions,

Triangle: Base = 8 cm and Height = 15 cm

As, Area of a triangle = $(1)/(2) (Base * Height)$

i.e. Area of the triangle = $(1)/(2) (8* 15)$

i.e. Area of the triangle = $(1)/(2)* 120$

i.e. Area of the triangle = 60 cm²

Semi-circle: Diameter = 8 cm implies Radius = 4 cm.

So, Area of the semi-circle = $(\pi r^(2))/(2)$

i.e. Area of the semi-circle = $(\pi 4^(2))/(2)$

i.e. Area of the semi-circle = $(16\pi)/(2)$

i.e. Area of the semi-circle = $(50.26)/(2)$

i.e. Area of the semi-circle = 25.13 cm²

Thus, the total area of the figure = 60 + 25.13 = 85.13 cm²

Ques 4: We are given a rectangle and a semi-circle of dimensions,

Rectangle: Length = 15 m, Width = 7 m.

As, we know, Area of a rectangle = Length × Width

i.e. Area of a rectangle = 15 × 7 = 105 m²

Semi-circle: Diameter = 15 m implies Radius = $(15)/(2)$ = 7.5 m

So, Area of the semi-circle = $(\pi r^(2))/(2)$

i.e. Area of the semi-circle = $(\pi (7.5)^(2))/(2)$

i.e. Area of the semi-circle = $(176.72)/(2)$

i.e. Area of the semi-circle = 88.36 m²

Thus, the total area of the figure = 105 + 88.36 = 193.36 m²

Find two consecutive numbers whose squares differ by 25

Answers

Consecutive numbers means that they are one after the other (i.e. 1, 2, 3 are consecutive numbers). The square of a number signifies the product of this number times itself (i.e. 2 times 2 = 4, so 4 is the square of 2). If these squares differ by 25, then when they are subtracted from one another, the difference will be 25:

12 x 12 = 144
13 x 13 = 169

169 - 144 = 25

Three-quarters of the 24 pies at the bakery or pumpkin pie how many pies are pumpkin

Answers

3 quarters of 24 is 8
So 8 pies

9. How many times did the temperature rise one degree per hour?A none
B 1
C 2
D 3

Answers

A. none

The temperature always went up by twos or fours, never ones.