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3 years ago

I need help I need help I need help Simplify. 4a-8a

Mathematics

2 answers:

lara31 [8.8K]3 years ago

5 0

Answer:

-4a

Step-by-step explanation:

a(4-8)= a(-4)= -4a

creativ13 [48]3 years ago

3 0

Answer:

Step-by-step explanation:

subtract 8a from 4a and u get your answer 4a.

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In a bag are 8 red marbles and 2 blue marbles.What chance does Gracia have of drawing a blue marble in one try without looking?

kap26 [50]

she has 1/4 of a chance of drawing a blue marble

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3 years ago

Which ratio is equivalent to 4 : 10 choose all that apply

m_a_m_a [10]

Answer:

2:5

Step-by-step explanation:

2*2 = 4

5*2 = 10

Therefore, 2:5 :: 4:10

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3 years ago

Read 2 more answers

storchak [24]

Question:

Lisa walks at an average speed of 6 km/h for 15 hours.

Dan completes the same distance in an hour. Calculate Dan's average speed.

Answer:

$Speed = 90km/hr$

Step-by-step explanation:

Given

Lisa:

$Speed = 6km/hr$

$Time = 15\ hr$

First, we calculate the distance covered by Lisa:

$Distance = Speed * Time$

$Distance = 6km/hr * 15\ hr$

$Distance = 90km$

So, Dan distance can be represented as:

$Distance = 90km$ --- Dan completes the same distance as Lisa

$Time = 1\ hr$ -- Time to complete the distance

Dan's average speed is:

$Speed = \frac{Distance}{Time}$

$Speed = \frac{90km}{1\ hr}$

$Speed = 90km/hr$

<em>Hence, Dan's average speed is 90km/hr</em>

4 0

3 years ago

6. Use the remainder theorem to find P(-3) for P(x) = x³+4x²+4

stellarik [79]

STEP - BY - STEP EXPLANATION

Given:

$P(x)=x^3+4x^2+4$

Step 1

Suppose x= -3, then

x+ 3

Step 2

Divide the polynomial by (x+ 3)

Step 3

Determine the remainder and quotient from the above.

Quotient = x²+ x - 3

Remainder = 13

ANSWER

Quotient = x²+ x - 3

Remainder = 13

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1 year ago

Nick has to build a brick wall. Each row of the wall requires 62 bricks. There are 10 rows in the wall. How many bricks will Nic

Marizza181 [45]

We know that each row would require 62 bricks, and considering that the wall will have multiple rows, we will be multiplying 62 by the number of rows. Since the wall has 10 rows, Nick has to use the 62 bricks 10 times (since 1 row requires 62 bricks, he would have to build that 1 row 10 times.)

If we think about the operation of multiplication, we can write “62 ten times” as 62 x 10 (or, when calculated, 620 bricks).

7 0

3 years ago