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3 years ago

PLS HELP ME ASAP ON THIS!! THANK U SM!!

Mathematics

1 answer:

ankoles [38]3 years ago

3 0

"Any strategy" includes letting a calculator solve it.

We find the tea costs $0.80 and the gum $0.45, so the price of Rocco's purchase will be $4.90.

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There are 88 Keyes on a piano.some keys are black and some keys are white .

shepuryov [24]

It would be C.88-x and there are 36 black keys on an 88 key piano

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3 years ago

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Mike has 16 baseball cards. Niko has 17 times as many cards as Mike does. How many ⚾ cards does Niko have?

Schach [20]

Multiply 17*16=272 baseball card for niko

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3 years ago

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HELP PLEASE!

wel

Answers:

$\text{Perimeter} = 14\sqrt{5}\\\\\text{Area} = 50\\\\$

=======================================================

Work Shown:

$L = 2\sqrt{5} = \text{length}$

$W = 5\sqrt{5} = \text{width}$

P = perimeter

$P = 2*(L+W)\\\\P = 2*(2\sqrt{5}+5\sqrt{5})\\\\P = 2*(7\sqrt{5})\\\\P = 14\sqrt{5}\\\\$

-------------

A = area

$A = L*W\\\\A = (2\sqrt{5})*(5\sqrt{5})\\\\A = (2*5)(\sqrt{5}*\sqrt{5})\\\\A = 10\sqrt{5*5}\\\\A = 10\sqrt{25}\\\\A = 10*5\\\\A = 50\\\\$

3 0

2 years ago

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If f(x) = 7 + 4x and g(x)= 7x, what is the value of (f/g)(5)

andrew-mc [135]

The value of $(\frac{f}{g})(5)$ is $\frac{27}{35}$

Explanation:

Given that $f(x)=7+4x$ and $g(x)=7x$

<u>The value of </u> $(\frac{f}{g})(5)$ <u>:</u>

The value of $(\frac{f}{g})(5)$ can be determined by substituting x = 5 in the functions f(x) and g(x) and then dividing the terms, we get, the value of $(\frac{f}{g})(5)$

Thus, we have,

$(\frac{f}{g})(5)=\frac{f(5)}{g(5)}$

Substituting the value of x = 5 in the functions f(x) and g(x), we get,

$(\frac{f}{g})(5)=\frac{7+4(5)}{7(5)}$

Simplifying the terms, we have,

$(\frac{f}{g})(5)=\frac{7+20}{35}$

Adding the terms in numerator, we have,

$(\frac{f}{g})(5)=\frac{27}{35}$

Thus, the value of $(\frac{f}{g})(5)$ is $\frac{27}{35}$

8 0

3 years ago

-3x -4y =-1 and 3x-y=-4 ( elimination)

Ksenya-84 [330]

Think of it as a subtraction problem.

-3x -4y = -1
3x - y = -4
_________
0x -5y = -5

y = -5/-5 = 1

Plug 1 in for y in either of the equations

3x -1 = -4
3x = -3
x = -1

Answer: (-1, 1)

3 0

3 years ago

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