2 years ago

Which two numbers add up to 3 and multiply to -2

2 answers:

8 0

There are no two numbers that add up to 3 and multiply to -2.

If this question is based on a quadratic equation, I would suggest you using the quadratic formula to find the roots.

Arte-miy333 [17]2 years ago

6 0

No two numbers add up to 3 and multiply to -2

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A coin bank has 250 coins, dimes and quarters, worth $39.25. How many of each type of coin are there?

Brilliant_brown [7]

$x-\ number\ of\ dimes\\y-\ number\ of\ quarters\\\\ \left \{ {{x+y=250\ \ \ | x=250-y} \atop {0.1x+0.25y=39.25\ \ \ \ \ \ \ \ \ \ \ \ \ }} \right. \\\\ substitution\ method\\\\
0.1(250-y)+0.25y=39.25\\\\
25-0.1y+0.25y=39.25\\\\
25+0.15y=39.25\ \ \ \ | subtract\ 25\\\\0.15y=14.25\ \ \ \ | divide\ by\ 0.15\\\\y=95\\\\x=250-95=
155\\\\
There\ are\ 155\ dimes\ and\ 95\ quarters.$

8 0

2 years ago

I need help with this question I’ll give 15 points

weeeeeb [17]

Answer:

Calculating (5 x 2) violates the order of operations

Step-by-step explanation:

According to the order of operations, multiplies all have equal priority. Therefore, they must be evaluated left to right, not right to left. Evaluating (5 x 2) first is incorrect, and instead (9 x 5) should be calculated first.

3 0

2 years ago

Read 2 more answers

Suppose Maya made another sign with an area of 48 square inches. Would this sign be larger or smaller than the sign with an area

luda_lava [24]

Larger because I want the points and you are going to get an F

6 0

3 years ago

The volume of a box in the shape of a rectangular prism

MakcuM [25]

Answer: 12

Step-by-step explanation: