2 years ago

3. Which value of x makes the equation 3.5(2x - 4) = 21 true

Mathematics

1 answer:

Grace [21]2 years ago

7 0

Answer:

Step-by-step explanation:

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mia spent $7.25 at the mall joselyn spent 3times as much rameesha spent $5.00 more than joselyn how much did rameesha spend?

KATRIN_1 [288]

Answer:

$26.75

Step-by-step explanation:

7.25x3=21.75

21.75+5.00=26.75

=26.75

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3 years ago

Plz. solve this sum

wariber [46]

Answer:

$\large\boxed{a-b=11}$

Step-by-step explanation:

$\text{Use}\ x^2-y^2=(x-y)(x+y).\\\\\text{We have}\\\\a^2-b^2=275\ \text{and}\ a+b=25.\\\\\text{Substitute:}\\\\275=(a-b)(25)\qquad\text{divide both sides by 25}\\\\\dfrac{(a-b)(25)}{25}=\dfrac{275}{25}\\\\\boxed{a-b=11}$

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3 years ago

Given the point (3, 4) and the slope of 6, find y when x = 27

Mumz [18]

You have to use y=mx+b
so you plug it in 4=6(3)+b
subtract 18 from both sides
-14=b
b is the y-intercept so it would be .... y=6x-14
you plug 27 in for x
y=6(27)-14
y=148

4 0

3 years ago

Read 2 more answers