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3 years ago

Solve the following system of equations:

Mathematics

1 answer:

Stella [2.4K]3 years ago

3 0

Answer:

(1, 3) is the answer! hope this helps

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Which number sentence shows the correct placement of the decimal point in the product based on the two factors A: 3.48 x 42.37 =

Rzqust [24]

Answer:

Step-by-step explanation:

Add the number of decimal places of the two numbers being multiplied to know the number of decimal places of the product.

A: 3.48 x 42.37 = 147.4476

2 decimal places + 2 decimal places = 4 decimal places

Only choice A is correct.

3 0

3 years ago

Henry ran five races, each of which was a different positive integer number of

dolphi86 [110]

Answer:

10 miles.

Step-by-step explanation:

Let x be the number of miles on Henry's longest race.

We have been given that Henry ran five races, each of which was a different positive integer number of miles.

We can set an equation for the average of races as:

$\frac{\text{The sum distances of 5 races}}{5}=4$

As distance covered in each race is a different positive integer, so let his first four races be 1, 2, 3, 4.

Now let us substitute the distances of 5 races as:

$\frac{1+2+3+4+x}{5}=4$

$\frac{10+x}{5}=4$

Let us multiply both sides of our equation by 5.

$\frac{10+x}{5}*5=4*5$

$10+x=20$

Let us subtract 10 from both sides of our equation.

$10-10+x=20-10$

$x=10$

Therefore, the maximum possible distance of Henry's longest race is 10 miles.

7 0

3 years ago

Write the sentence as an equation.41 fewer than the quantity t times 307 is equal to n

Serhud [2]

The given statement is:

41 fewer than the quantity t times 307 is equal to n.

The equation is given by:

$307t-41=n$

3 0

1 year ago

A rectangular yard measuring 41ft by 60ft is bordered (and surrounded) by a fence. Inside, a walk that is 4ft wide goes all the

Alexandra [31]

area of yard = 41 x 60 = 2460 square feet

walk is 4 feet wide

41-4 =37, 60-4 = 56

37*56 = 2072

2460-2072 = 388

area of walk is 388 square feet

8 0

3 years ago

Solve the system of equations x+4y=15 2x-y=-15

Lady_Fox [76]

x+4y=15 2x-y=-15

We have to make x neg.

-2(x) + 4y (-2)= -2(15)

-2x-8y=-30

2x-y=-15

-9y= -45

Solve for y

Y=-45/-9

Y = 5

Substitute your y answer into one original equation to find x .

x+4y=15

X+4(5)=15

X+20=15

X=15-20

X= -5

Answer is (-5,5)

7 0

4 years ago