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hodyreva [135]
3 years ago
10

Help 1 A / 7 (x + 2) -5 = 30

Mathematics
1 answer:
DaniilM [7]3 years ago
3 0

Answer:

x = 3

Step-by-step explanation:

Given

7(x + 2) - 5 = 30 ( add 5 to both sides )

7(x + 2) = 35 ( divide both sides by 7 )

x + 2 = 5 ( subtract 2 from both sides )

x = 3

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A and \angle B∠B are vertical angles. If m\angle A=(4x+23)^{\circ}∠A=(4x+23)
Tema [17]

Answer:

m∠B=143°

Step-by-step explanation:

we know that

<u><em>Vertical Angles</em></u> are the angles opposite each other when two lines cross. They are always equal

so

In this problem we have that

m∠A=m∠B ----> by vertical angles

substitute the given values and solve for x

(4x+23)=(5x-7)\\5x-4x=23+7\\x=30

Find the measure of angle B

m∠B=(5x-7)°

substitute the value of x

m∠B=(5(30)-7)°

m∠B=143°

7 0
3 years ago
Lena knows the following information about her box of 18 candies: 10 candies contain both chocolate and caramel. 3 candies conta
NikAS [45]

Answer:

The frequency table is attached below.

Step-by-step explanation:

Given the total number of candies in the box = 18

Frequency table is used to list the occurence of a thing or product and it helps to calculate and sort down easily.

                                 <u>Contains caramel</u>   <u>Do not contain caramel</u>    Total

<u>Contains chocolate</u>                    10                                   2                       12

<u>Do not contain  </u>                            3                                    3                       6

<u>chocolate</u>

Total number of candies as per the frequency tablr = 12 + 6 = 18 which tallies with the given data.

6 0
4 years ago
Need the answer , I’m confused
S_A_V [24]

Answer:

  • $1 per day

Step-by-step explanation:

Amounts spent on Wednesday and Thursday are $4 and $5.

<u>The rate of change over one day is:</u>

  • (5 - 4)/1 = 1
7 0
3 years ago
What is 0.22 expressed as a percent?<br> A. 220%<br> B. 22%<br> C. 2.2%<br> D. 0.022%
hram777 [196]

b.

0.22(100)=22.0

we have to move the decimal point twice to the right to get a percent!

7 0
3 years ago
Read 2 more answers
a cylinder has a diameter of 14 centimeters and a volume of 112pi cubic centimeters. what is the height, in centimeters, of the
OverLord2011 [107]
Formula for volume of a cylinder is 
v =  \pi  r^{2} h

where r is the radius and h is the height

We can set v equal to 112π as we are given that.
We can set r to 7 as we are given the diameter, 14, and the radius is half of that.

112 \pi=  \pi   7^{2} h

Simplify this equation,
112 \pi =  \pi *49*h

Our goal is to to isolate h, as we are trying to find the height.
So divide 49π on both sides,\frac{112 \pi }{49 \pi } = h
 
The π's cancel out and we are left with 
h =  \frac{112}{49} or 16/7 centimeters.

Hope this helped! :)
4 0
3 years ago
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