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4 years ago

Solve this equation 7b-6(11-2b)=10

1 answer:

6 0

7b-6(11-2b)=10
The first step is to distribute. Multiply each number inside the parentheses by -6.
7b + (-6*11) + (-6*-2b) = 10
7b - 66 + 12b = 10

Now combine like terms.
19b - 66 = 10

Add 66 to both sides.
19b = 76

Divide both sides by 19.
b = 4

The answer is b = 4.

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Which expression is equivalent to a4⋅b2⋅a‐4⋅b4?

baherus [9]

Answer:

$b^6$

Step-by-step explanation:

a^4+-4 * b^2+4

a^0*b^6

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4 years ago

Find 2 2/3 / 4 1/3 . Simplify the answer and write as a mixed number if appropriate.

Delvig [45]

2 2/3 ÷ 4 1/3 = 8/13

8 0

4 years ago

Read 2 more answers

When Mrs. JHixson gave a test, the scores were normally distributed with a mean of 78 and a standard deviation of 6. This means

Sergio039 [100]

For normal distribution 95% lie in the range mean-2*standard deviation for lower bound and mean+2*standard deviation for upper bound.

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B. 66 and 90

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3 years ago

1. Ashley and Emma are reading the same article. Ashley is on page 1 of

konstantin123 [22]

Answer:

It will take 6 minutes by Ashley and Emma to read the same amount of pages.

Step-by-step explanation:

Let in 't' minutes Ashley and Emma will read the same amount of pages.

If Ashley can read one page in a minute then she can read the number of pages in t minutes = 1×t =t

If she starts from page 1 then after time 't' she will be at the page = (t + 1)

Similarly, if Emma takes 3 minutes to read the amount of pages = 1

Then she can read amount of pages in t minutes = $\frac{t}{3}$

If Emma starts from page 5 then after t minutes she will be at the page = $(\frac{t}{3}+5)$

If both have read the same amount of pages then,

$(t+1)=\frac{t}{3}+5$

$t-\frac{t}{3}=5-1$

$\frac{2t}{3}=4$

t = 6 minutes

Therefore, it will take 6 minutes by Ashley and Emma to read the same amount of pages.

7 0

3 years ago

Find the area of the rectangle on this centimetre grid.

KiRa [710]

Answer:

Step-by-step explanation:

I think this question is not clear.

If you could explain/upload the centimeter grid it'd be explain.

But generally, what you should do is: calculate the number of centimeters on the longer side (length (l)) and note that, now calculate the number of centimeters on the shorter side (breadth(b)).

Use the formula, Area of a rectangle = l×b to solve your math problem

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3 years ago