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3 years ago

Solve the equation 3m - 7 = 8 will give brainliest and be grateful!

Mathematics

2 answers:

sertanlavr [38]3 years ago

8 0

Answer:

m=5

Step-by-step explanation:

3(5)=15

therefore,

15-7=8

Sonja [21]3 years ago

8 0

Answer:

Add 7 to both sides of the equation

3 − 7 + 7 = 8 + 7

Simplify

3m = 8 + 7

3 = 1 5

Divide both sides of the equation by the same term

3 = 1 5

3 / 3 = 1 5 /3

The answer

= 5

Hope it helps you : )

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B) y = log2 (4" - 4) find the inverse of this equation

GuDViN [60]

Answer:

$y = \frac{1}{4} \times {2}^{x} - 1$

Step-by-step explanation:

Assuming the given logarithmic equation is

$y = \log_{2}( {4}{x } - 4)$

We interchange x and y to get:

$x= \log_{2}( {4}{y} - 4)$

We solve for y now:

${2}^{x} = {4}{y} - 4$

We add 4 to both sides to get;

${2}^{x} + 4 = 4y$

Divide through by 4:

$y = \frac{1}{4} \times {2}^{x} - 1$

4 0

3 years ago

William purchased 76.9 feet of fencing for his back yard. He realized after measuring, that he still needed an additional 25.7 f

Lostsunrise [7]

William needs 102.6 fencing in all because 76.9 plus 25.7 equals 102.6, hope this helps!

3 0

3 years ago

PLEASE HELP I AM STRUGGLING ON THIS

givi [52]

Answer:

(1, -5) or x=1, y=-5

Step-by-step explanation:

Hope this helps!

7 0

2 years ago

2. Find the value of x. (1 point) (5x) (3x+28) O 14 O20 O 12 O 19

nata0808 [166]

Answer:

x = 14

Step-by-step explanation:

The triangle has 2 congruent legs and is isosceles with 2 base angles being congruent , then

5x = 3x + 28 ( subtract 3x from both sides )

2x = 28 ( divide both sides by 2 )

x = 14

6 0

3 years ago

50% of 80 solve pls show working pls I know it just try working it

Eduardwww [97]

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{40}}}}}$

Step-by-step explanation:

$\sf{50 \: \% \: of \: 80}$

To convert the percent into a fraction , divide it by 190 and remove the % symbol. Then , Simplify the fraction to its lowest term.

⇒ $\sf{ \frac{50}{100} \times 80}$

⇒ $\sf{ \frac{1}{2} \times 80}$

Divide 80 by 2

⇒ $\sf{40}$

Hope I helped!

Best regards!!

5 0

3 years ago

Read 2 more answers