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Svetach [21]
3 years ago
15

URGENT!! Really need help on this test

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
7 0

Answer:

x=17

Step-by-step explanation:

53+(2x+3)=90

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2. Are these two ratios equivalent? 8/5, 24/20
uysha [10]

Answer:  No

Step-by-step explanation:

I took a test and this answer was correct.

4 0
3 years ago
Carl collects coins compulsively, but he only likes quarters ($0.25) and dimes ($0.10). Carl currently has 125 coins for a total
Bogdan [553]

Answer:

Carl has 35 dimes and 90 quarters

Step-by-step explanation:

Let the number of quarters be q and the number of dimes be d

Total number of coins is 125;

Hence;

q + d = 125 •••••••••(i)

The total value of quarters present = q * 0.25 = 0.25q

The total value of dimes present = d * 0.1 = 0.1d

Adding both gives the total

0.25q + 0.1d =26 ••••••••(ii)

So we need to solve both equations simultaneously;

From i,

q = 125 - d

Substitute this into ii

0.25(125-d) + 0.1d = 26

31.25 -0.25d + 0.1d = 26

31.25 -26 = 0.25d -0.1d

5.25 = 0.15d

d = 5.25/0.15

d = 35

Recall; q = 125 - d = 125 -35 = 90

7 0
3 years ago
HELP please its the 4.06 Linear Functions if you know it please help broo and girl or whoever!
MissTica

y= 1/2x +2

if x=0 y=2  (0,2)

if x=2 y = 1/2 *2 +2 =1+2 =3  (2,3)

you now have two points so you can plot the line

4 0
3 years ago
NEED RN, WORTH 20! <br> What is the value of x?
max2010maxim [7]

Answer:

x = 5.625

Step-by-step explanation:

<u>Step 1:  Make an expression</u>

<u />\frac{3}{4} = \frac{x}{7.5}

<u>Step 2:  Cross Multiply</u>

<u />\frac{3}{4} = \frac{x}{7.5}

4 * x = 7.5 * 3

4x = 22.5

<u>Step 3:  Divide both sides by 4</u>

<u />4x / 4 = 22.5 / 4

x = 5.625

Answer:  x = 5.625

5 0
3 years ago
Do you guys know which coordinates im supposed to graph on here?
nadezda [96]

Answer:

SOLVE FOR Y

graph y= 2x + 2

sp graph the points

(0,2) and then (1,4)

connect the points and extend the line.

Step-by-step explanation:

add 2x to both sides

-2x+y=2

+2x     +2x

y= 2+2x

reverse

y= 2x+2

3 0
3 years ago
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