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3 years ago

Solve the systems of equations using substitutions

Mathematics

1 answer:

Serga [27]3 years ago

4 0

The answer is (3,-1)

Btw girly download Photomath for easy equation like this. They don’t do word problems but it can show you step by step and explain too!!

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Identify a pattern and find the next number in the pattern

Genrish500 [490]

i believe it is b -204.8

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3 years ago

What is the equation of the line will mark you brainliest

Delvig [45]

so you're going to need to find the slope. in order to do that use (y2-y1)/(x2-x1)

(7-(-2))/(0-8)

simplify

9/-8

simplify -9/8

now using y=mx+b, we need to find b. so we can plug in the coordinates of (0,7) or (8,-2). let's use (8,-2) because it involves more math.

y=mx+b

-2=(-9/8)(8)+b

multiply (-9/8) by 8 to get -9

-2=-9+b

add 9 to both sides

7=b

so our equation is now

y=-(9/8)x+7

5 0

3 years ago

1.(8x+3)(4x-5) 2.(10x-2)(3x+6) please show your work will mark brainliest

stepan [7]

The answers to the questions

7 0

3 years ago

A parabola passes through the points (-3,0), (-2,3), and (-1,4). What function does it represent? Use the graphing tool to deter

Stella [2.4K]

Answer: C

Step-by-step explanation:

(-1,4) is the vertex. reflect (-2,3) and (-3,0) onto the other side of the y-axis. you may use desmos to plug in the functions and the answer will be C, since it goes through the points given and reflected.

8 0

3 years ago

Chef plans to serve 4.5 oz. steaks to 180 Guests. How many POUNDS only of raw steak should Chef order if Waste (trimming and coo

kotegsom [21]

Answer: Option 'c' is correct.

Step-by-step explanation:

Since we have given that

Number of ounces steaks = 4.5 oz

Number of guests = 180

Percentage of waste = 25%

Number of ounces of fresh steak is given by

$4.5\times 180\\\\=810\ oz$

Let the number of ounces of raw steak be x.

According to question,

$\dfrac{100-25}{100}\times x=810\\\\\dfrac{75}{100}\times x=810\\\\0.75\times x=810\\\\x=\dfrac{810}{0.75}\\\\x=1080\ oz$

As we need in pounds, and we know that

1 pound = 16 ounces

So, Number of pounds of raw steak that Chef could order is given by

$\dfrac{1080}{16}=67.5\ lbs$

Hence, Option 'c' is correct.

7 0

3 years ago