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3 years ago

11

Marcus has 4 times the sum of 6 and the number of marbles David has let d represent the number of marbles David has write an alg

ebraic expression to represent how many marbles Marcus has.

1 answer:

Likurg_2 [28]3 years ago

8 0

Answer:

4(6+d)

Step-by-step explanation:

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Help me please it’s really hard for me

Marysya12 [62]

Answer:

B1= -7

B2=-9

400 times bigger

Step-by-step explanation:

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3 years ago

) If the pattern shown continues, how many black keys appear on a portable keyboard with 49 white keys? Suggestion: use equivale

andriy [413]

Answer:

35

Step-by-step explanation:

Here we see 5 black keys for every 7 white keys.

So the ratio is 5:7

If we need 49 white keys, find the amount we scale the original ratio by:

49/7 = 7

So we are scaling by a factor of 7.

The number of black keys would be 5 * the scale of 7. = 35

So there should be 35 black keys.

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Find the same of 136+ 212 explain why you did not regroup

Dimas [21]

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3 years ago

What is the equation of the following line? Be sure to scroll down first to see all answer options.

Colt1911 [192]

Answer:

E

Step-by-step explanation:

The equation of a line passing through the origin is

y = mx ( m is the slope )

Calculate m using the slope formula

m = $\frac{y_{2}-y_{1} }{x_{2}-x_{1} }$

with (x₁, y₁ ) = (0, 0) and (x₂. y₂ ) = (8, 2) ← 2 points on the line

m = $\frac{2-0}{8-0}$ = $\frac{2}{8}$ = $\frac{1}{4}$

y = $\frac{1}{4}$ x → E

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3 years ago

I really need help 20 points

Andrew [12]

Number 6 is A because Five times -1 is -5+3×11 equal -2

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