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jolli1 [7]
3 years ago
14

Find the slope of a line with these two points (-1,2) and (4,-3)

Mathematics
1 answer:
GenaCL600 [577]3 years ago
7 0

Answer:

-1

Step-by-step explanation:

-3-2=-5

4-(-1)=5

-5/5 simplifies to -1

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4(x + 10) < 20 What is the answer
lukranit [14]

Answer:

x < -5

Step-by-step explanation:

Distribute 4 to x and 10: 4x + 40 < 20

Subtract 40 from both sides: 4x < -20

Divide by 4: x < -5

6 0
2 years ago
The number −5 is all of the following except _____.
nirvana33 [79]

Answer:

a real number

Step-by-step explanation: You didn't list the choices- a real number is all positive numbers except 0

7 0
3 years ago
High grade steel consists of 85% iron and 15% magnese. Low grade steel consists of 67% iron and 33% mag ese. NASA orders 500 ton
Mamont248 [21]

Answer:

361\dfrac{1}{9} tons of high steel and 138\dfrac{8}{9} tons of low steel

Step-by-step explanation:

Let x be the number of tons of high grade steel and y be the number of tons ow low grade steel needed.

In x tons of high grade steel there are

0.85x tons of iron

0.15x tons of magnese

In y tons of low grade steel there are

0.67y tons of iron

0.33y tons of magnese

NASA orders 500 tons of steel, so

x+y=500

and specifies that it must be in the proportion 80% iron and 20% magnese, so

0.85x+0.67y=500\cdot 0.8\\ \\0.85x+0.67y=400

From the first equation,

x=500-y

Substitute it into the second equation:

0.85(500-y)+0.67y=400\\ \\425-0.85y+0.67y=400\\ \\-0.18y=-25\\ \\y=\dfrac{2,500}{18}=138\dfrac{8}{9}\ tons\\ \\x=361\dfrac{1}{9}\ tons

7 0
3 years ago
Create your own scenario for a system of equations and solve it. Please do not just write two equations, but apply what you have
BARSIC [14]

Answer:

Dr. Potter provides vaccinations against polio and measles.

Each polio vaccination consists of 444 doses, and each measles vaccination consists of 222 doses. Last year, Dr. Potter gave a total of 606060 vaccinations that consisted of a total of 184184184 doses.

How many polio vaccinations and how many measles vaccinations did Dr. Potter give last year?

Step-by-step explanation:

8 0
3 years ago
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What is the simplified value of the exponential expression 27 Superscript one-third? 1/3 1/9 3 9
Aleksandr [31]

Answer:

3

Step-by-step explanation:

27^{\frac{1}{3} = \sqrt[3]{27}

∛27 = 3

6 0
3 years ago
Read 2 more answers
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