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dezoksy [38]
2 years ago
14

9 + 4b = 17 I need this question quick lol

Mathematics
1 answer:
Dennis_Churaev [7]2 years ago
6 0

Answer:

hey

b = 2

Step-by-step explanation:

Let's solve your equation step-by-step.

9+4b=17

Step 1: Simplify both sides of the equation.

4b+9=17

Step 2: Subtract 9 from both sides.

4b+9−9=17−9

4b=8

Step 3: Divide both sides

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Five cupcakes and two cookies cost $19.75. Two cupcakes and four cookies cost $ 17.50.
alina1380 [7]

Answer:

Step-by-step explanation:

Let x and y represent the cost of a cupcake and cookie respectively.

Given that;

Five cupcakes and two cookies cost  $19.75.

5x+2y=19.75 ---------- 1

Two cupcakes  and four cookies cost $17.50.

2x+4y=17.50 --------------2

Let's solve the simultaneous equation by elimination;

Multiply equation 1 by 2;

10x+4y=39.50-------3\\

Subtract equation 2 from equation 3;

10x-2x+4y-4y=39.50-8x=22

8x=22

divide both sides by 8

\frac{8x}{8} =\frac{22}{8} \\x=2.75

Since we have the value of x, let substitute into equation 1 to get y;

5x+2y=19.75\\5(2.75)+2y=19.75\\13.75+2y=19.75\\2y=19.75-13.75\\2y=6\\y=\frac{6}{2} \\y=3.00

therefore , the cost of cupcakes and cookies are;

cupcakes=  2.75\\cookies= 3.00

PLEASE MARK ME AS BRAINLIEST

6 0
2 years ago
Which of the following functions represents an absolute value function?
bagirrra123 [75]
Y = |x - 21| represents an absolute value function.
7 0
2 years ago
A starter motor used in a space vehicle has a high rate of reliability and was reputed to start on any given occasion with proba
GuDViN [60]

Answer:

0.095163

Step-by-step explanation:

given that a starter motor used in a space vehicle has a high rate of reliability and was reputed to start on any given occasion with probability .99999

Here we find that for any start, there are exactly two outcomes either success or failure.

Also each start is independent of the other since p = 0.99999 for succss is given constant.

Thus X no of successes is binomial with p = 0.99999 and n =10000

If Y is taken as failure then Y is binomial with p' = 0.00001 and n =10000

Required probability

= the probability of at least one failure in the next 10,000 starts

= 1-P(no failure in 10000 starts)

=1-(0.99999)^{10000} \\=0.095163

4 0
3 years ago
3p²q - 6pq² help me please .​
Ann [662]

3p²q - 6 pq²

3pq (p - 2q )

I think this is the solution

7 0
3 years ago
Find Malcolm’s debt-to-income ratio if his monthly expenses are $975 and his monthly salary is $1200.
hjlf

Answer: D. 0.8125

Step-by-step explanation: His expenses is $975, and his salary is $1200. Divide the expenses by the salary to find the debt-to-income ratio.

975/1200 = 0.8125

The debt-to-income ratio is 0.8125.

7 0
3 years ago
Read 2 more answers
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