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Murljashka [212]
3 years ago
11

Evaluate -3(6) please help me with this question

Mathematics
2 answers:
Elden [556K]3 years ago
6 0

Answer:

-18

Step-by-step explanation:

This question is asking -3 times 6. To solve, first multiply 3 x 6 to get 18. Now add the negative sign to get -18.

Hope it helps!

Dovator [93]3 years ago
4 0

Answer:

-18

Step-by-step explanation:

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Elimination Method 7x=3y+45 4x+5y=19 (Show it step by step please!)
Fittoniya [83]

\left\{\begin{array}{ccc}7x=3y+45&|\text{subtract 3y from both sides}\\4x+5y=19\end{array}\right\\\left\{\begin{array}{ccc}7x-3y=45&|\text{multiply both sides by 5}\\4x+5y=19&|\text{multiply both sides by 3}\end{array}\right\\\underline{+\left\{\begin{array}{ccc}35x-15y=225\\12x+15y=57\end{array}\right}\qquad|\text{add both sides of the equations}\\.\qquad47x=282\qquad\text{divide both sides by 47}\\.\qquad \boxed{x=6}\\\\\text{Put the value of x to the second equation}

4(6)+5y=19\\\\24+5y=19\qquad\text{subtract 24 from both sides}\\\\5y=-5\qquad\text{divide both sides by 5}\\\\\boxed{y=-1}\\\\Answer:\ \boxed{x=6\ and\ y=-1}

8 0
3 years ago
The ratio of a to b is 3 to 1, and the ratio of b to c is 1 to 5. What is the value of 2a+3b/ 4b+3c?
Nostrana [21]

Answer:

B

Step-by-step explanation:

Expressing the ratios as fractions, that is

\frac{a}{b} = \frac{3}{1} ( cross- multiply )

a = 3b

\frac{b}{c} = \frac{1}{5} ( cross- multiply )

c = 5b

------------------------------------------

Given

\frac{2a+3b}{4b+3c} , substitute values from above for a and c

= \frac{2(3b)+3b}{4b+3(5b)}

= \frac{6b+3b}{4b+15b}

= \frac{9b}{19b} ← cancel b on numerator/ denominator

= \frac{9}{19} → B

6 0
3 years ago
Which of the following equations represents direct variation?
liberstina [14]

2=6-3 is the direct variation

4 0
2 years ago
What is 2/3 of 84 please hurry
valentinak56 [21]
Multiply 2/3 by 84 which is 56.
8 0
3 years ago
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Jeremy has a weekend job as a soccer referee. One weekend, he earns $140 by working 4 games. Another weekend, he earns $210 by w
Ilya [14]

Answer:

$140 divided by 4 games = 35$ per games next $210 divided by 6 games = 35 also so the slope is 35 answer c

Step-by-step explanation:

i am good at this type of math

6 0
2 years ago
Read 2 more answers
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