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damaskus [11]
3 years ago
6

Just want to know if I got them right.I got 100 for number one

Mathematics
2 answers:
Firlakuza [10]3 years ago
8 0
1. X= 100
2. C= 1
3. X= 11
4. M= 12
5. B= 5
6. Y= 3

Work:
1). 5(x + 2) = 510
5(100 + 2)= 510
5(102)=510
X=100

Please mark brainliest
Makovka662 [10]3 years ago
7 0
5(x+2)=510
5x+10=510
510-10=500
5x/5=500/5
x=100

4(2c+5)=28
8c+20=28
8c/8=8/8
c=1

3(x-5)=30
3x-15=30
3x=45
3x/3=45/3
x=15

n(3+4)=84
n3+n4=84
n7/7=84/7
n=12

5(b-3)=10
5b-15=10
5b=25
5b/5=25/5
b=5

1.5(2y+5)=__?
y=__?
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Given n//p m<2=50 degrees what is m<7?
Bogdan [553]

Answer: m∠7=130°

Step-by-step explanation:

  If two parallel lines are cut by another line (transversal), each one will have four angles surrounding the intersection.

By definition,  the adjacent angles of each parallel line, are supplementary, this means that they add up 180°.

Then, if m∠2=50°, then  m∠3 is:

m∠3=180-50=130°

By definition, the angles that are in the same relative position are know as corresponding angles and they are congruent.

Therefore:

m∠3=m∠7

m∠7=130°

3 0
3 years ago
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Work out the circumference of this circle.
Arada [10]

Answer: 52.7856cm

Step-by-step explanation:

Circumference of a circle = 2πr

Note that radius = Diameter / 2 = 16.8/2 = 8.4cm

Circumference = 2πr

= 2 × 3.142 × 8.4

= 52.7856cm

Therefore, the circumference of the circle is 52.7856cm

6 0
3 years ago
A certain hybrid car has a mileage rating of 57 miles per gallon. if the car makes a trip of 293 miles, how many gallons of gaso
dlinn [17]
To determine the number of gallons of gasoline that is used, we need to know the rate of usage of gasoline. This rate would describe the number of gasoline in units of volume that is being used per distance in units of length. In this case, we need the rate in units of miles per gallon. From what is asked and the given values, we simply divide the rate to the the total distance that was traveled by the car. We calculate as follows:

Gallons of gasoline = 293 miles / 57 miles / gallon
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Therefore, about 5 gallons of gasoline was consumed by the hybrid car for a distance of 57 miles.
4 0
4 years ago
What is the value of x in the equation 6x − 22 = 76?
gavmur [86]
Put x on one side of the equation


6x=(76+22)

6x=98
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Simplify

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7 0
3 years ago
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I need to know of an expression, that also uses an exponent that is equivalent to 5^-3
strojnjashka [21]

Answer:

1/5^3

\frac{1}{5^{3} }

Step-by-step explanation:

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5 0
3 years ago
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