Mathematics High School

Sergio went to the library at 3:18 p.m. to do homework. He worked at the library for 57 minutes, then left to go home. What time did Sergio leave the library?

Answers

Answer 1

Answer:

The time would be 4:15 I think

Related Questions

help, this is incorrect! (can you help with working out?)

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Answer:

262 × 39 ÷ 100 = 10218 ÷ 100 = 102.18

Step-by-step explanation:

This is the correct answer your's is wrong.

plz help asap will give brainliest

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Answer:

Step-by-step explanation:

Answer: x<10

Step-by-step explanation:

In the diagram of JML below, NK∥ML, JN=6, NM=30, and JK=7. What is the length of JL?

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Answer:

Step-by-step explanation:

Answer: 42

Step-by-step explanation:

IF YOU $80 AND THEN GET $20 MORE,WHAT IS THE PERCENTAGE

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Answer:

100% for 100 dollars

Step-by-step explanation:

i think so im not sure

I need help please!!!
Solve the system by substitution.
y=-4x
y=x-5

Answers

You would plug in y into the other equation.
-4x = x-5
Put x variables on one side
-4x - x = -5
-5x = -5
x=1
Then plug in 1 for x in any equation
y = 1 - 5
y = -4
So the answers are x=1 and y=-4
Hope this helped!

Simplify this expression (xy^4)^6

Answers

x^6y^24

Hope it help

Answer:

x^6*y^24

Step-by-step explanation:

This will become:

[tex]x^6*(y^4)^6[/tex]

Next, multiply the exponents for y:

x^6 * y^24

So the answer is x^6*y^24

What is the value of x in the equation below
6(x-8)=72

Answers

Answer:

x = 20

Step-by-step explanation:

6(x-8)=72

6x-48=72

6x-48+48=72+48

6x=120

6x/6=120/6

x = 20

hope it's helpful ❤❤❤❤❤❤

THANK YOU.

Answer: x=20

Step-by-step explanation:

Distribute the 6 to the values in the parentheses

6x - 48 = 72

Add 48 to each side

6x = 120

Divide each side by 6

x = 20

Find the value of x acellus
Help

Answers

Answer: x = 3

because ΔABC has BD is the bisector of ∠ABC

=> AD/AB = DC/BC

⇔ x/6 = 4/8

⇔ x/6 = 1/2

⇔ x = 6.1/2

⇔ x = 3

Step-by-step explanation:

Answer: x=3

Step-by-step explanation:

If DF and GI are parallel lines and mGHE = 47°, what is mIHE?

Answers

Answer:

mIHE should be 133°

Step-by-step explanation:

A line is 180°, so, if you take 47° off you're left with 133.

Giving you an answer of 133°.

Two straight lines have equations y = p x + 4 y = p x + 4 and p y = q x − 7 p y = q x − 7 , where p p and q q are constants. The two lines meet at the point ( 3 , 1 ) ( 3 , 1 ) . What is the value of q q ?

Answers

Answer:

q = [tex]\frac{8}{3}[/tex]

Step-by-step explanation:

The point of intersection (3, 1 ) is the solution to both equations

Using

y = qx - 7 and substituting x = 3, y = 1

1 = 3q - 7 ( add 7 to both sides )

8 = 3q ( divide both sides by 3 )

[tex]\frac{8}{3}[/tex] = q

To celebrate 25 years in business, the furniture store is having a 25% off sale on all their furniture. Estimate the new price before tax of a table that costs $159.39.

Answers

Answer:

Step-by-step explanation:

159.39(1-25/100)

159.39(100-25)/100

159.39(75)/100

159.39(0.75)

$119.54

Solve 8x – 5 = 23 + 4x.

Answers

Answer: X equals 7

Step-by-step explanation:

Answer:

Step-by-step explanation:

First you want to simplify the equation

8x + (-5) = 23 + 4x

-5 + 8x = 23 + 4x

Then solve for x, but before we do that we !!!must!!! move all terms that have x to the left. Everything else would go to the right.

So we add -4x to both sides ..

-5+ 8x + (-4x) = 23 + 4x + (-4x)

-5 + 4x = 23 + 4x + (-4x)

-5 + 4x = 23 +0

-5 + 4x = 23

Then add 5 to both sides of the equation:

-5 + 5 + 4x = 23 + 5

0 + 4x = 23 + 5

4x = 23 + 5

4x = 28

Then divide each side by 4:

x = 7

And there you have it. The answer is 7. Hope this helps! :)

72
Expressing a radical in simplest form

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Answer:

Exact Form: 6√2

Decimal Form: 8.485

PLS HELP I WILL REALLY APPRECIATE

Answers

Answer:

$2547 per month

Step-by-step explanation:

849 * 3 = 2547

Answer:

2547

Step-by-step explanation:

For what value of x must ABCD be a parallelogram?
X=_______

Answers

Answer:The value of x must be 7 units.

Step-by-step explanation:

hope this helps

Hello! Some assistance with this question would be really helpful (:

Answers

The mode is the most common number in the data set. If there are two numbers that appear frequently (in this case 69 and 73) then this data set has two modes.

The median is the middle of the set of numbers (line them up from top to bottom).

In this case it should look something like:

68 68 69 69 69 69 70 70 71 72 72 73 73 73 73 75 78

If the whole list of numbers are even, then pick the two middle numbers and find their average. If it is odd, just choose the middle most number.

Mean is the average of all numbers. If you have 5 numbers, add them all up and divide by 5. If you have 10 numbers, add them all up and divide by 10.

A department store sells a pair of shoes with an 87% markup.
If the store buys the shoes for $19.00, what is the markup price?

Answers

Answer:

35.53

Step-by-step explanation:

19.00x 87%=16.53

16.53+19.00= 35.53

I need help plz help me on this i will give u brainless on this question

Answers

Answer:

Equations: y=x+3 and y=-1/2x

solution: (-2,1)

Step-by-step explanation:

Shelley's kitten weights 2 1/3 times as much as she did last year. She now weighs 21 ounces. What did the kitten weight a year ago?

Answers

Answer:

weight of the kitten last year = 9 ounces

Step-by-step explanation:

Let

x = weight of the kitten last year

Weight of the kitten this year = 2 1/3 * x = 21

7/3*x = 21

7/3x = 21

x = 21 ÷ 7/3

x = 21 × 3/7

= 63/7

x = 9 ounces

weight of the kitten last year = 9 ounces

Find the product. Enter the product in simplest form.

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Answer:

Step-by-step explanation:

You multiply/divide all the fractions with each other.

what is the sqaure root of 184

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Step-by-step explanation:

13.56 is the square root of 184

CAN SOMEONE ANSWER THIS PLEASE AND RHANK YOU!

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Answer:

1/9?

Step-by-step explanation:

What expression is equivalent to x2 - 49?
O A. (x-772
O B. (x + 7)2
O c. (x + 7)(x-7)
OD. (x + 7) (7 - x)
PLEASE HELP

Answers

Answer:

Expla:

x²-49

x²-7²

= (x+7)(x-7)

A prescription for Singulair costs $14 for a month's supply. How much will this prescription cost for a year?
PLS HELP HW DUE IN 2MIN!!!!

Answers

168 dollars I hope this helps

PLEASE HELP IT'S DUE IN 15 MINUTES!! WILL GIVE BRAINLIEST!!!!

Answers

the answer would be 3x+2=10x-5

Step by step pls I’ll make u brainly

Answers

Answer:

a = 6

Step-by-step explanation:

120 = 3 + 3(7a - 3) (by PEDMAS, expand parentheses first by distributive property)

120 = 3 + 7a(3) - 3(3)

120 = 3 + 21a - 9

120 = 21a - 6 (add 6 to both sides and rearrange)

21a = 120 + 6

21a = 126 (divide both sides by 21)

a = 126/21

a = 6

Step-by-step explanation:

120-(3+3*(7*a-3))=0

Step by step solution :

STEP

Equation at the end of step 1

120 - (3 + 3 • (7a - 3)) = 0

STEP

Pulling out like terms :

3.1 Pull out like factors :

126 - 21a = -21 • (a - 6)

Equation at the end of step

-21 • (a - 6) = 0

STEP

Equations which are never true:

4.1 Solve : -21 = 0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation:

4.2 Solve : a-6 = 0

Add 6 to both sides of the equation :

a = 6

One solution was found :

a = 6

The boundary point is? The solutions are all values ? 3

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Answer:

There’s no picture

Step-by-step explanation:

Next tim, attach it

75 students received a coupon. These students represent 5% of the total students at Seven Lakes JH. How many total students attend Seven Lakes JH?

Answers

1500 students, 5% of 1500 is 75

Find a formula for the nth term of the arithmetic sequence a1=-17 a2=-12 a3=-7 a4=-2

Answers

Answer:

Step-by-step explanation:

Recursive formula

a1 = -17

a^n = a^n-1 + 5

Explicit formula:

a^n = -17 + (n-1) * 5

Hey I really need help with this question please help

Answers

Answer:

let me look

Step-by-step explanation:

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