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3 years ago

This is my last question can someone help me ?? Please

Mathematics

1 answer:

Margaret [11]3 years ago

6 0

The first three are correct

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Stefan sells Jin a bicycle for $138 and a helmet for $18. The total cost for Jin is 130% of what

lys-0071 [83]

Answer:

1. $109.20 2. $46.80

Step-by-step explanation:

Doing the math, we find that 30% of 156 (138+18) is 46.80, which answers the second part of this problem. Plugging this value into the first part of the equation gives us what Stefan originally paid.

Good luck! Hope this helps!

5 0

2 years ago

Write the polynomial as a product of a difference and a sum: b^2-4/9

Alenkinab [10]

Answer:

$\sf \huge \boxed{ \boxed{(b + \frac{2}{3} )(b - \frac{2}{3} )}}$

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>

algebra
PEMDAS

<h3>tips and formulas:</h3>

${x}^{2} - {y}^{2} = (x + y)(x - y)$

<h3>let's solve:</h3>

$\sf \: rewrite : \\ ( {b})^{2} - ( \frac{2}{3} {)}^{2}$
$\sf use \: the \: formula : \\ (b + \frac{2}{3} )(b - \frac{2}{3} )$

4 0

2 years ago

HELP ASAP!!! PLZZ NEED HALP?

egoroff_w [7]

Answer:

x=60

Step-by-step explanation:

61+59=120

180-120=60

3 0

2 years ago

A round balloon has a diameter of 7 inches

gizmo_the_mogwai [7]

Answer:

The right answer is approximately 210.031 cubic inches. (Answer: E)

Step-by-step explanation:

First, we need to convert the diameter ( $D$ ), in inches, of the round balloon to an entirely decimal mode:

$D = 7\,in + \frac{3}{8}\,in$

$D = \frac{56 + 3}{8}\,in$

$D = \frac{59}{8}\,in$

$D \approx 7.375\,in$

The volume of the balloon is modelled after the volume function of a sphere ( $V$ ), in cubic inches:

$V = \frac{\pi}{6}\cdot D^{3}$ (1)

If we know that $D \approx 7.375\,in$ , then the volume of the round balloon is:

$V = \frac{\pi}{6}\cdot D^{3}$

$V = \frac{\pi}{6} \cdot (7.375\,in)^{3}$

$V \approx 210.031\,in^{3}$

Hence, the right answer is approximately 210.031 cubic inches.

6 0

3 years ago

Is 18 T greater than 36,000 lb

kumpel [21]

Yes, 18 T is greater than 36,000 lb.

Hope this helped!

7 0

3 years ago

Read 2 more answers