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almond37 [142]
2 years ago
12

Q.1 - Adam is ordering pizza for a company party that he needs to have catered. Company A charges $8 for each pizza and a delive

ry/set-up fee of $45. Company B charges $12 for each pizza and a delivery/set-up fee of $5. Which inequality can be used to find x, the least number of pizzas that can be ordered so that the total charge for Company A is less than the total charge for Company B?
A) 8 + 45x > 12 + 5x

B) 8 + 45x < 12 + 5x

C) 8x + 45 < 12x + 5

D) 8x + 45 > 12x + 5


Q. 2 - The cost of a candy bar in a vending machine is $0.95. The cost of a bottle of water in the same machine is $1.25. Jamie has $25.00 to spend on candy bars and bottles of water for her friends. She must buy nine candy bars. If b represents the number of bottles of water, which inequality represents all the possible values of b?

A) 1.25(9) + 0.95b ≥ 25

B) 1.25(9) + 0.95b ≤ 25

C) 0.95(9) + 1.25b ≥ 25

D) 0.95(9) + 1.25b ≤ 25


Q. 3 - Oliver needs to save at least $1500 to buy a computer. He has already saved $650. How much more does he need to save? Write and solve an inequality.

A) x + 650 ≥ 1500; x ≥ 850

B) x + 650 ≤ 1500; x ≤ 850

C) x + 1500 ≤ 650; x ≤ -850

D) x + 1500 ≥ 650; x ≥ -850

Q.4 - Joel's family has four more pets than Brian's family. Together the two families have at least 7 pets. Let x represent the number of pets Brian's family has. Which inequality can be used to find the possible numbers of pets Brian's family has?


A) x + 4 ≥ 7

B) 2x + 4 ≥ 7

C) 2x + 4 ≤ 7

D) 2x - 4 ≥ 7
Mathematics
2 answers:
Greeley [361]2 years ago
7 0

Answer:

Imma take the points since this is my own question on my other account...lol

Step-by-step explanation:

Tasya [4]2 years ago
3 0

Answer:

4. A) \displaystyle x + 4 ≥ 7

3. A) \displaystyle x + 650 ≥ 1500; x ≥ 850

2. D) \displaystyle 0,95(9) + 1,25b ≤ 25

1. C) \displaystyle 8x + 45 < 12x + 5

Step-by-step explanation:

4. Two families combined have <em>at</em><em> </em><em>least</em><em> </em>3 pets.

3. $1500 is your result, so everything else is straightforward simple, knowing that the keywords <em>at</em><em> </em><em>least</em><em> </em>$1500<em> </em>mean <em>greater</em><em> </em><em>than</em><em> </em><em>or</em><em> </em><em>equal</em><em> </em><em>to</em><em> </em>$1500.

2. Find the correspondents, then determine what inequality to use. In this case, you will use <em>less than</em><em> </em><em>or equal</em><em> </em><em>to</em><em> </em>because overpaying is UNNECESSARY.

1. <em>Eight</em><em> </em><em>dollars</em><em> </em><em>each</em><em> </em><em>pizza</em><em> </em>and <em>twelve</em><em> </em><em>dollars</em><em> </em><em>each</em><em> </em><em>pizza</em><em> </em>is <em>12x</em><em> </em>and <em>8x</em>.<em> </em>The rest is straightforward simple because you now have your <em>initial</em><em> </em><em>costs</em><em> </em>of <em>$</em><em>45</em><em> </em>and <em>$</em><em>5</em>,<em> </em>and the exercise tells you that the total charge for Company A is <em>less than</em> the total charge for Company B, therefore you have your answer.

I am joyous to assist you anytime.

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