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blagie [28]
3 years ago
13

Ajar contains nickels and dimes. There is a

Mathematics
2 answers:
devlian [24]3 years ago
7 0

Answer:

There are 91 dimes in the jar.

Step-by-step explanation:

5n+10d= 1455

n+d = 200

n=200-d

5(200-d) + 10d=1455

1000-5d+10d=1455

1000+5d=1455

5d=455

d=91

91 dimes

PilotLPTM [1.2K]3 years ago
3 0
Answer Answer Answer Answer Answer Answer Answer Answer Answer Answer
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hichkok12 [17]

Answer:

(2,4) is a solution to this system of equations

Step-by-step explanation:

Given system of equation are

y=2x \hfill (1)

y=\frac{-1}{2}x+5\hfill (2)

To find the solution of the given system of equations

To Check that (2,4) is a solution to this system or not

Solving equations (1) and (2)

From equation (1) and y=2x

Now substitute y=2x is equation (2)

2x=\frac{-1}{2}x+5

\frac{-1}{5}x+5-2x=0

5-\frac{x}{2}-2x=0

5-\frac{x+4x}{2}=0

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Substitute x=2 in equation (1)

y=2x

y=2(2)

Therefore y=4

Therefore the solution is (2,4)

Therefore (2,4) is a solution to the system of equations.

4 0
3 years ago
Rate and Ratio Sipho paid 605,50 for 70litres of petrol.What did the petrol cost per litre.​
amid [387]
605,50/70= 929 per liter or 9.29 if it was suppose to be 605.50 price.
6 0
2 years ago
6. Use the Rational Root (Zero) Theorem to list all the possible real roots (zeros).
maks197457 [2]
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8 0
3 years ago
What is the coefficient of q in the sum of these two expressions?
Nana76 [90]

Answer:

the two coefficients are 2/3 and -1/6

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Step-by-step explanation:

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Help me solve this math problem 3x+2y=3
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