3 years ago

A key board tht cost $400 is marked down 10%for a sale.what is the reducd price for the key board

Mathematics

1 answer:

allochka39001 [22]3 years ago

4 0

$350 at least i think anyways

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Which equation is in standard form?

evablogger [386]

The answer is C. 2x+3y=12

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3 years ago

Suppose you had d dollars in your bank account. You spent $22 but have at least $42 left. How much money did you have initially?

german

1) What left

$\boxed {d-22 \geq 42}$

*Obs: remember that left at least 42 dollars. In other words, the left over is equal or more than 42 dollars.

2) At the beginning

$d-22 \geq 42 \\ \\ \boxed {d \geq 64}$

Letter C

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2 years ago

A rectangular deck has an area of 320ft^2. the length of the deck is 4 feet longer than the width. find the dimensions of the de

Digiron [165]

A = L * W
A = 320
L = W + 4

320 = W(W + 4)
320 = W^2 + 4W
W^2 + 4W = 320
W^2 + 4W + 4 = 320 + 4
(W + 2)^2 = 324
W + 2 = (+-) sqrt 324
W = -2 (+-) 18

W = -2 + 18 = 16 ft <== this is the width
W = -2 - 18 = -20....not this one because it is negative

L = W + 4
L = 16 + 4
L = 20 ft <=== this is the length

in summary...the width is 16 ft and the length is 20 ft

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2 years ago

How do I do this cause I don’t get it

mars1129 [50]

for the 0 u put zero the for 5 u put 40 then for 10 u put 80 then for 15 u put 120 then for 20 u put 160

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3 years ago

Marlena has a bag of coins the bag contains 8 quarters 10 times 4 nickels + 2 pennies she would randomly select a coin from the

melisa1 [442]

Answer:

C) 1/6

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

In this question:

We have 8 + 10 + 4 + 2 = 24 coins

Of those, 4 are nickels. So

$p = \frac{4}{24} = \frac{1}{6}$

The correct option is given by option C.

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2 years ago