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3 years ago

Please help i dont understand

Mathematics

1 answer:

umka21 [38]3 years ago

6 0

Answer:

Part a)

We need to find the equation of the line with a slope of -5 and a y-intercept of (0,3)

Part b)

The information that we have; we know the value of he slope, -5, and the y-intercept (0,3).

Part c)

strategies to use;

we can use the standard form of the equation of a straight line in slope -intercept form;

y=mx+c

Step-by-step explanation:

We have been given the slope is -5, thus the value of m is -5. moreover, the y-intercept is given as, (0,3) thus c is 3.

Final answer to the problem is;

y=-5x+3

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Dean sot a goal to do more than 900 push-ups this month. So far, he has done 230 push-ups, and there are 20 more days remaining

vampirchik [111]

Step-by-step explanation:

he has 900-230 = 670 more push-ups to do in the remaining 20 days.

so, he has to do every day

670/20 = 67/2 = 33.5 push-ups.

fractions of push-ups don't make sense.

we cannot say, he has to do at least 33 per day, because then he might come short in the end (if he sticks to the low limit) .

so, we have to say he has to do more than 33 or at least 34 push-ups per day to be sure he will at least reach his goal.

p > 33

p >= 34

both should be correct in the context of using only whole numbers.

bur in case of doubt I would pick p >= 34.

5 0

2 years ago

I NEED HELP WITH THIS PROBLEM

Lady bird [3.3K]

Answer:

brainest

Step-by-step explanation:

7 0

3 years ago

At one company a level 1 engineer receives a salary of $45,000 and a level 2 receives a salary of $65,000. The company has a bud

kkurt [141]

Answer:

Company will hire 3 Engineers of Level 1 and 10 Engineers of level 2.

Step-by-step explanation:

Let the number of engineers for level 1 be x.

Let the number of engineers for level 2 be y.

Given:

Total Number of engineers company can hire = 13

Now Total number of engineers are equal to sum of number of engineers for level 1 and number of engineers for level 2.

Hence Framing in the equation form we get;

$x+y=13 \ \ \ \ equation\ 1$

Also Given:

Salary of level 1 engineers = $45,000

Salary of level 2 engineers = $65,000

Total Budget of Company = $785,000

But Total Budget of Company depends upon the sum of Salary of level 1 engineers multiplied with number of level 1 engineers and Salary of level 2 engineers multiplied with number of level 2 engineers.

Hence equation can be framed as;

$45000x+65000y = 785000$

Dividing by 5000 on both side we get;

$\frac{45000x}{5000}+\frac{65000y}{5000}=\frac{785000}{5000}\\\\9x+13y=157 \ \ \ \ equation\ 2$

Now Multiplying equation 1 by 9 we get;

$9(x+y)=13\times9\\9x+9y= 117 \ \ \ \ equation\ 3$

Now Subtracting equation 3 from equation 2 we get;

$(9x+13y)-(9x-9y)=157-117\\\\9x+13y-9x-9y=40\\\\4y=40\\\\y=\frac{40}{4} =10$

Now Substituting the value of y in equation 1 we get

$x+y=13\\x+10=13\\x=13-10\\x=3$

Hence Company will hire 3 Engineers of Level 1 and 10 Engineers of level 2.

5 0

4 years ago

PLEASEE HELPP IM DESPERATE I’LL GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST CORRECTLY

DedPeter [7]

Answer:

x = 2, -2, -1/5

Step-by-step explanation:

g(x)= 5x^3+x^2-20x-4

g(x)= x^2(5x+1)-4(5x+1)

g(x)=(x^2-4)(5x+1)

g(x)=(x-2)(x+2)(5x+1)

x-2=0

x= 2

x+2=0

x= -2

5x+1=0

x= -1/5

8 0

3 years ago

4. If y - 2x = 3 and y - x = 1, what are the values of x and y?

ioda

y - x = 1.

or, y= 1+x

y - 2x = 3.

=>1+x -2x= 3 (substituting the value of y)

=>-x= 2

=>x= -2

y = -2+1 = -1

Therefore, x = -2 and y = -1

3 0

3 years ago