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Sholpan [36]
3 years ago
15

I need help Please!

Mathematics
2 answers:
goldenfox [79]3 years ago
8 0

Answer:

To solve, use a simple one-step equation

Known: Number of coins; Number of Nickles.

Unknown: Number of Dimes.

a) To find the number of Dimes

b) Use x (or virtually any letter) to represent the unknown number of dimes

c) 9+x=13

d) Subtract 9 from both sides to cancel out the 9 and isolate the variable on one side. x=4

e) 9+4=13, so yes, the answer is correct

Jet001 [13]3 years ago
7 0
A. How many dimes is there out of the 13 coins.
B. D= dimes
C. 9+d=13
D. 9+d=13
Subtract 9 from 13
13-9=4
D=4
9+4=13
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Y + 1 = -2x-3 in standard form *
notka56 [123]

Answer:

<em>y = -2x - 4</em>

Step-by-step explanation:

<em>y + 1 = -2x - 3</em>

<em>Subtract 1 from both sides to get the y by itself</em>

<em>y = -2x - 3 - 1</em>

<em>Simplify (Combine Like terms)</em>

<em>y = -2x - 4</em>

8 0
3 years ago
An engine uses 2.25 gallons of gas per hour. How many gallons will it use in 3.2 hours?
love history [14]

Answer:

7.2 gallons

Step-by-step explanation:

2.25 x 3.2 = 7.2

3 0
3 years ago
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Help! open the attachment below!
gregori [183]

Answer:

yes it is

Step-by-step explanation:X=side lenghths 2/3

                                            Y=perimeter 12/18

2 time 6=12 and 3 times 6=18 and it is paraticly telling you

2/6 and 3/6 i beleve i need a lil more info

6 0
3 years ago
WILL AWARD BRAINLIEST
balu736 [363]

Answer:

when entering values of x in the function, it is observed that for k = 7 the results of f (x) displace 10 units. For this see the attached table. Therefore, for this case, the correct answer is k = 7 and the way to solve it is to substitute values of x in the given functions and see the results of f (x).

so K=7

Step-by-step explanation:

6 0
3 years ago
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Type the correct answer in the box.
Pepsi [2]

Answer:

f(g(-64)) = -190

Step-by-step explanation:

The functions are not well written.

Let us assume;

f(x) = x+1

g(x) = 3x+1

f(g(x)) = f(3x+1)

Replace x with 3x+1 in f(x)

f(g(x)) = (3x+1) + 1

f(g(x)) = 3x + 2

f(g(-64)) = 3(-64) + 2

f(g(-64)) = -192+2

f(g(-64)) = -190

<em>Note that the functions are assumed but same method can be employed when calculating composite functions</em>

8 0
3 years ago
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