4 years ago

Write a description of how a diagram can help you solve 2*40

1 answer:

4 0

If you draw 40 dots in one row, then add a second row of 40 dots, you will get your answer. You can count the dots and then get your answer, which is 80.

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Two numbers have a sum of 44. The larger number is 2 more than the smaller number. What is the smaller number?

Keith_Richards [23]

Hello :
x the smaller number
x+2x =44
3x ==44
x=44/3

6 0

3 years ago

Mika and her two best friends are all dressing up as superheroes for Halloween this year. Their costumes are almost ready, but e

Sever21 [200]

Answer:

4yards

Step-by-step explanation:

4ft×3=12ft

1yrd=3ft

12ft÷3ft=4yards

6 0

3 years ago

The Ellisons have insured their home for $890,000. Their personal property

Artemon [7]

Answer:

19000 8000 90000 60000

Step-by-step explanation:

4 0

3 years ago

Which of the following is a valid exclusion for the algebraic fraction 8ab^2x/4a^2b-8ab^2

Molodets [167]

Answer:

a ≠ 2b

Step-by-step explanation:

The given expression is

$\frac{8ab^{2}x}{4a^{2}b-8ab^{2}}$

$=\frac{8ab^{2}x}{4ab(a-2b)}$

Simplifying it, we have

$\frac{8ab^{2}x}{4a^{2}b-8ab^{2}} = \frac{bx}{a-2b}$

For the above fraction to exist, the denominator must not be equal to zero.

i.e, a-2b ≠ 0

=> a≠2b

∴ The algebraic fraction exists when a≠2b.

3 0

3 years ago

Read 2 more answers

Find the equation of line that goes through coordinates (-4,-2) and (-3,-5) ?

frutty [35]

Answer: y = -3x/7 + 26/7

Step-by-step explanation: Using the "slope-intercept" format, we can set up 2 equations, using the given points.

The format: y = mx + b, where m is the slope and b is the y-intercept (where x = 0)

To find m and b, we need 2 equations which we get using the 2 given points:

(-3,5):

5 = m(-3) + b (equation 1)

(4,2):

2 = m(4) + b (equation 2)

Subtract #2 from #1 to get:

3 = -7m

m = -3/7

Then, using equation 1, find b:

5 = (-3/7)*(-3) + b

b = 5 - 9/7 = 26/7

The equation is then:

y = -3x/7 + 26/7

3 0

2 years ago