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Dominik [7]
3 years ago
7

Solve this 2 step equation 3x-8=7

Mathematics
2 answers:
Gwar [14]3 years ago
4 0

Answer:

X=5

Step-by-step explanation:

3x-8=7

3x=15 (add 8 to both sides)

X=5 (divide by 3)

Ne4ueva [31]3 years ago
3 0
Since, x = 5
So,
3x - 8 = 7
or, 3 x 5 - 8 = 7
Therefore, 15 - 8 = 7
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What sum of money amounts to rupees 545 4 at 8% BA in 30 months​
Mars2501 [29]

Answer:

let sum of money be x

amount=rupees5454

rate=8%

time=30 months

convert month into year

30/12=5/2 years

Step-by-step explanation:

interest=p*t*r/100

=x*5*8/100*2

=40x/200

=x/5

so to find principal use formula

amount=principal +interest

5454=x+x/5

5454=5x+x/5

5454*5=6x

27270/6=x

4545=x

therefore ,sum of money(principal)=rupees.4545

Hope this helps u!!

5 0
3 years ago
Melissa's chocolate bar is 77% cocoa. If the weight of the chocolate bar is 92 grams, how many grams of
Elena L [17]

Answer:

70.8

Step-by-step explanation:

77% is the same as 0.77 so
92 * 0.77 = 77% of 92
92 * 0.77 = 70.84
rounded to the nearest tenth
70.8

7 0
2 years ago
Read 2 more answers
Find the area of a parallelogram with the given vertices. P(-2, -5), Q(9, -5), R(1, 5), S(12, 5)
valentina_108 [34]

Answer:

The area of the parallelogram is 55 square unit.

Step-by-step explanation:

The area of a parallelogram is

A=\frac{1}{2}\times base\times height

It is given that the vertices of the parallelogram are  P(-2, -5), Q(9, -5), R(1, 5), S(12, 5).

Plot these points on a coordinate plane, and draw a perpendicular on PQ from the point R.

From the graph is clear that length of PQ is 11 and the height of the parallelogram is 10. So, the area of a parallelogram is

A=\frac{1}{2}\times 11\times 10

A=55

Therefore the area of the parallelogram is 55 square unit.

4 0
3 years ago
F(x)=18x+11, find f(5)
Natalija [7]

Answer:

\boxed {\tt f(5)=101}

Step-by-step explanation:

We are given the function:

f(x)=18x+11

and asked to find f(5). Therefore, we must substitute 5 in for each x.

f(5)=18(5)+11

Solve according to PEMDAS: Parentheses, Exponents, Multiplication, Division, Addition, Subtraction.

Multiply 18 and 5.

f(5)=90+11

Add 90 and 11.

f(5)=101

f(5) is equal to 101.

5 0
3 years ago
Can some help me please.........
bezimeni [28]

Answer:

C

Step-by-step explanation:

Bc i'm smart and i know things

4 0
3 years ago
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