3 years ago

Please help I have to do this in class!!!!

Mathematics

1 answer:

Aleksandr [31]3 years ago

8 0

Answer

33 1/2%

Explanation

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Sophia and Olivia shared 60p so that Olivia had 10p more than Sophia. How much did Sophia have?

Taya2010 [7]

Answer:

Step-by-step explanation:

If Olivia had 10 more p than Sophia, then Olivia has 35, and Sophia has 25.

35 + 25 = 60!

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3 years ago

What is the solution set for 12=2(3x - 7)^2 +4

svet-max [94.6K]

$12=2(3x-7)^2+4 \ \ \ |-4 \\
8=2(3x-7)^2 \ \ \ |\div 2 \\
4=(3x-7)^2 \\
\sqrt{4}=\sqrt{(3x-7)^2} \\
2=|3x-7| \\
3x-7=2 \ \lor \ 3x-7=-2 \\
3x=2+7 \ \lor \ 3x=-2+7 \\
3x=9 \ \lor \ 3x=5 \\
x=\frac{9}{3} \ \lor \ x=\frac{5}{3} \\
x=3 \lor \ x=1 \frac{2}{3} \\
\boxed{x \in \{1 \frac{2}{3}, 3 \} }$

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3 years ago

The bill is 87.00 you leave a 12% tip what is the amount of the tip?

pickupchik [31]

Answer:

$10.44

Step-by-step explanation:

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3 years ago

Read 2 more answers

What is the quotient of 7^2/2x+6 divided by 3x-5/x+3

Reil [10]

$\bf \cfrac{7^2}{2x+6}\div \cfrac{3x-5}{x+3}\implies \cfrac{7^2}{2x+6}\cdot \cfrac{x+3}{3x-5}\implies \cfrac{49}{2~~\begin{matrix} (x+3) \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}}\cdot \cfrac{\begin{matrix} x+3 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix} }{3x-5}\implies \cfrac{49}{2(3x-5)}$

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4 years ago

A vendor sells hot dogs and bags of potato chips. A customer buys 4 hot dogs and 5 bags of potato chips for $15.50. Another cust

Anna007 [38]

Let h represent the cost of hot dogs and p represent the cost of potato chips.

Customer 1: 4h + 5p = 15.50 ⇒ 3(4h + 5p = 15.50) ⇒ 12h + 15p = 46.50

Customer 2: 3h + 2p = 9.00 ⇒ -4(3h + 2p = 9.00) ⇒ -12h - 8p = -36.00

7p = 10.50

p = 1.50

Customer 2: 3h + 2p = 9.00 → 3h + 2(1.50) = 9.00 → 3h + 3.00 = 9.00 → 3h = 6.00 → h = 2.00

Answer: hot dog = $1.50, potato chips = $2.00

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3 years ago