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aleksandr82 [10.1K]
2 years ago
7

Solve the problem. Give the equation using x as the variable, and give the answer.

Mathematics
1 answer:
Korolek [52]2 years ago
4 0

Answer:

The equation is     8x+7=112

Step-by-step explanation:

the answer is 13.125

this is what i got. i am sorry if it is wrong.

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A campus radio station surveyed 500 students to determine the types of music they like. The survey revealed that 192 like rock,1
mihalych1998 [28]

Answer:

160

Step-by-step explanation:

Total students were 500.

We define our grupes:

Rock = A

country = B

Jazz = C

The groups are given by,

A=192

B=156

C=118

From the combination we have:

A \cap B=18

A\cap C=20

B\cap C=24

A\cap B\cap C=6

Students who liked Rock only are:

X=A-A\cap C-A\cap B+A\cap B\cap C

X=92-20-18+6

X=160

8 0
3 years ago
- Todd uses 21 white tiles and some black tiles to make a mosaic. The mosaic has a total area of ​​144 square centimeters. Each
Anna71 [15]

Answer:

48

Step-by-step explanation:

21 white tiles = 63 cm2

total number is 144

144-63 = 81

81/3 = 27

so 27 black tiles

21+27 = 48 total.

5 0
2 years ago
Read 2 more answers
the equation of a line is y=-1/2x-2. what is the equation of the line that is perpendicular to the first line and passes through
Alexxandr [17]
Perpendicular means that the slopes are negartive inverses, aka
slope1 times slope2=-1

y=mx+b
slope=m

y=-1/2x-2
slope=-1/2

we need to find negative inverse
-1/2 times what=-1
answer is 2

y=2x+b
input the point (2,-2) to find b
(x,y)
(2,-2)
-2=2(2)+b
-2=4+b
minus 4 from both sides
-6=b
y=2x-6

the equtaion is y=2x-6
8 0
3 years ago
Help me please. solve for f (-2)​
Naddika [18.5K]

Answer:

9

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
(1) What is the measurement of 12° <br><br> 70° <br><br> 10° <br><br> 40°
irina [24]
132 or 2.304 radian ? still not really sure what's being asked
8 0
3 years ago
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