Mathematics College

In one problem, he gave her a store receipt that listed 72 identical items, each the

same price, for a total cost of

$ * 67.9*

Bryn's Grandpa covered the first and last digits of the total price on the receipt

with stars.

Determine the values of the digits that Bryn's Grandpa covered.

Answers

Answer 1

Answer:

The first covered digit = x = 3

The last covered digit = y = 2

The total price on the receipt = $367.92

Step-by-step explanation:

Given data:

total cost = $ * 67.9*

First we check for the multiples of 72

9 × 8 = 72

Let

the first covered digit be denoted by x

the last covered digit be denoted by y

Solution

First we find the last covered digit

If a number should be divisible by 8,

It must be a multiple of 8

From the given price:

The last 3 digits = 79*

number in multiples of 8

7.9* = 7.20 + 0.64+ 0.08

7.9* = 7.92

Therefore, the last two digit is 2.

Next We find the first covered digit.

If a number is divisible by 9, it is a multiple of 9

The first digit = x  would be determined as:

= x + 6 + 7 + 9 + 2

= x + 24

= x + 24

multiple of 9 nearer to 24 = 27

27 = x + 24

x = 27 - 24

x = 3.

Related Questions

Choose all pairs of points that are reflections of each other across both axes.
A. (–4 1/2, 1) and (–1, 4 1/2)
B. (2.5, –1) and (–2 1/2, 1)
C. (4.2, –1) and (2.4, –1)
D. (1, –2.25) and (–1, 2 1/4)
E. (–2, 2 1/3) and (2, 2 1/3)

Answers

Answer:

c

Step-by-step explanation:

Answer: C

Step-by-step explanation:

Please help! Chapter test tomorrow!!
PLEASE i need to show the work, the equations.

Answers

Answer:

x=6

Step-by-step explanation:

4x-15=2x-3

+15 +15

4x=2x=12

/2 /2 +12

2x=12

/2 /2

x=6

Answer:

#1:

[tex]4x - 15 + 2x + 3 = 48\\\\2x + 18 = 48\\\\2x = 30\\\\x = 15[/tex]

#2:

Part 1: Solve for x

[tex]6x - 7 = 5x + 1\\\\x - 7 = 1\\\\x = 8[/tex]

Part 2: Plug in x for PQ

[tex]6(8) - 7\\\\48 - 7\\\\41[/tex]

The length of segment PQ is 41.

Part 3: Plug in x for QR

[tex]5(8) + 1\\\\40 + 1\\\\41[/tex]

The length of segment QR is 41.

Part 4: Length of PQ + length of QR = length of PR

PQ + QR = PR

41 + 41 = PR

82 = PR

The length of segment PR is 82.

Anna is in a cave 42 feet below the cave entrance. She descends 10 feet, then ascends 15 feet. Find her new position relative to the cave entrance.

Answers

Answer:

Her new position is 37 feet below the cave entrance

Step-by-step explanation:

Let us solve the question

∵ The cave entrance is the zero position

∵ Anna is in 42 feet below the cave entrance

→ Below zero means negative

∴ Anna is in -42 feet

∵ She descends 10 feet

→ Descend means negative

∴ She is in -42 + -10 = -52 feet

∵ She ascends 15 feet

→ Ascend means positive

∴ She is in -52 + 15 = -37 feet

→ -37 means she is in below the cave entrance by 37 feet

∴ Her new position is 37 feet below the cave entrance

Shirley is drawing triangles that have the same area. The base of each
triangle varies inversely with the height. What are the possible base
and height of a second triangle if the first triangle's base is 12 and its
height is 8?
Select one:
a. 120 and 80
b. 10 and 10
c. 60 and 36
d. 16 and 6

Answers

Answer:

d. 16 and 6

Step-by-step explanation:

Triangle area = (base × height)/2

A = (8 × 12)/2 = 96/2 = 48

A = (16 × 6)/2 = 96/2 = 48

There are 3 cats in the room and no other creatures. Each cat has 2 ears, 4 paws, and 1 tail.

Answers

Answer:

ok soooo whats the question like bruhhhhhh i here to anwser now tell me the question

Step-by-step explanation:

How many days are in 5 years? Correct answer gets brainliest. 2 possible answers

Answers

Answer:

1826.21099

Step-by-step explanation:

Answer: 1825 days.

Step-by-step explanation: 365x5=1825

Jade used 3/4
yard of fabric to make a scart. Can she make 2 of these scarves with 1 4/5 yards of fabric, and why?

Answers

Answer:

Yes she can

Step-by-step explanation:

3/4 = 0.75

1 4/5= 1.8

0.75 x 2 = 1.5 which is less that 1.8 so she can

For a certain type of sand, 1 cubic foot weighs 80 pounds. The sand goes in a container that weighs 40 pounds. Use the Ray tool to make a graph that shows the total weight of the container and sand, w, filled with n cubic feet of this sand. I need the coordinates for the graph please.

Answers

Answer:

First, let's write our equation in a general way.

We know that:

1 cubic foot weighs 80 pounds.

The container weighs 40 pounds.

Then, if i put n cubic feet of sand in the container, the total mass will be one time the mass of the container plus n times the mass of one cubic foot of sand.

We can write this as:

w(n) = 40lb + n*80lb

This is a linear equation, where the y-axis will represent the mass in pounds and the x-axis will be the number of cubic feet of sand in the container in units, a graph of this is shown below.

You can see that it is really steep, this is because for really small increments in n, the weight increases a lot.

Answer

ok, Just plot the points at (0,40) and (2,200) :))

Before adding the following fractions, you need to find the common ? 2/3 + 1/6 =

Answers

Answer:

denominator

Step-by-step explanation:

Answer:

5/6

Step-by-step explanation:

2/3×2/2 + 1/6

4/6 + 1/6

5/6

What is the value of (4 minus 2) cubed minus 3 times 4?

Negative 20
Negative 4
4
20

Answers

Answer:

yes the last person is correct

Step-by-step explanation:

.60 is what percent of 180? ​

Answers

Answer:

1.08

Step-by-step explanation:

.60% *180=108

108/100=1.08%

Answer:

108

Step-by-step explanation:

A basket can hold 30 apples. Max has 16 apples. He plans to buy 6 more. Each apple costs $1. After he buys the new ones, how many more apples will the basket hold? The basket can hold more apples after Max buys more.​

Answers

Answer:

He can buy 8 more apples because 16+6=22-30=8

Step-by-step explanation:

Hope it helps :)

Have a good day/night

Brainliest pls?

choose the ratio that is equivalent to this one 1/7 A. 3/21 B. 14/2 C. 4/11 D. 3/14​

Answers

Answer:
3/21

Explanation:
1/7•3= 3/21

Answer:

Step-by-step explanation:

A

...................................

Answers

Answer:

What? lol

Step-by-step explanation:

Answer:

........................?

Step-by-step explanation:

what ratio is lesa than 7/15​

Answers

Answer:

2/5=6/15 and that is less so....

Step-by-step explanation:

Please help!!!
thanks

Answers

Answer:

11. 92- corresponding angles theorem

12. 92- vertical angles theorem

13. 88- ???

14. 106- same side interior angles theorem

15. 106- supplementary angles theorem (not sure about the reasoning)

16. 106- supplementary angles theorem (not sure about the reasoning)

PRACTICE ANOTHER Is 4a a factor of 2a · 38b? (Assume that a and b represent integers.) Yes, because 4 is a multiple of 38. Yes, because 2a · 38b = 4a · 19b where 4a and 19b are integers because a and b are integers and products of integers are integers. Yes, because 4a is a divisor of 38b. No, because 38 is not a divisor of 4. No, because 2a · 38b = 4a · 19b where 4a and 19b are not necessarily integers because products of integers are not always integers.

Answers

Answer:

Yes, [tex]2a . 38b = 4a . 19b[/tex]

Step-by-step explanation:

Given

[tex]Expression: 2a.38b[/tex]

Required

Is 4a a factor of the expression?

Analyzing each option.

1.

[tex]2a . 38b = 4a . 19b[/tex]

[tex]76ab = 76ab[/tex]

The above expression is true.

Hence: This option answers the question

Find the area of a rectangle with length of 80 inches and width of 17 inches.

Answers

Answer:

                                 

Step-by-step explanation:

Answer:

length times width

Step-by-step explanation:

80 time 17~

Susie walk 10 miles each week. she has already walked 3 miles this week and expects to walk 100 miles how long will it take her to walk 100 miles

Answers

Answer:

10 weeks

Step-by-step explanation: 100÷10=10

big brain

Answer:

9 week and 4 days

Step-by-step explanation:

A small school with 606060 total students records how many of their students attend school on each of the 180180180 days in a school year. The mean number of students in attendance daily is 555555 students and the standard deviation is 444 students. Suppose that we take random samples of 555 school days and calculate the mean number of students \bar x x ˉ x, with, \bar, on top in attendance on those days in each sample.

Answers

Answer: 180,842,239

Step-by-step explanation:

Answer:

55

1.8

Step-by-step explanation:

Khanacademy

The sum of 48 and itself, its half and half of the half is added to 18.​

Answers

Answer:

150

Step-by-step explanation:

This is a word problem which should be tackled accordingly.

The sum of 48 and itself

= 48+48

= 96

It's half and half of its half

= 48/2 and (48/2)/2

= 24+ 24/2

= 24+12

= 36

Is added to 18

= 96+36+18

= 150

From the description above the entire sum is 150.

magazine subscription cost $29.88 for 12 issues or $15.28 for six issues which subscription cost more per issue

Answers

Answer:

$15.28 for 6 issues cost more

Step-by-step explanation:

$29.88 divided by 12 is $2.49

$15.28 divided by6 is $2.546

Find the value of x.

Please help!!​

Answers

X is equal to 5. Hope this helps and have a good day. Also, A Brainliest would be much appreciated

Answer:

5

Step-by-step explanation:

Use the Exterior Angle Theorem.

The E.A.T states that the measurement of an exterior angle is found by adding the two opposite and non-adjacent interior angles.

In this case, the Exterior Angle is 121. The sum can be found by combining 17x - 4 and 8x. Set the equation:

17x - 4 + 8x = 121

First, combine like terms:

17x + 8x - 4 = 121

(17x + 8x) - 4 = 121

(25x) - 4 = 121

Next, Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

First, add 4 to both sides of the equation:

25x - 4 (+4) = 121 (+4)

25x = 121 + 4

25x = 125

Next, divide 25 from both sides:

(25x)/25 = (125)/25

x = 125/25

x = 5

5 is your value for x.

~

What is y+1 = 4(x - 1) in slope-intercept form?

A. y+ 1 = 4x - 4
B. -4x+y=5
C. y = 4x-5
D. 4x- y=-5

Answers

would be y=4x-5

steps are

multiply 4 by everything in parentheses

y + 1 = 4x - 4

subtract 1 from both sides

y = 4x -5

Answer:

C. y = 4x-5

Step-by-step explanation:

Slope-intercept form : y=mx+b

[tex]y+1 = 4(x - 1)[/tex]

Expand :

[tex]4(x-1) =4x -4\\\\y+1 =4x-4[/tex]

Collect like terms and simplify

[tex]y=4x -4-1\\\\y=4x -5[/tex]

7th grade math help me plzzz

Answers

Answer:

11.a) is 15+5.50+3 maybe

11.b) is $3.50 because 15-12=3 3+5.50=8.50 8.50+3=11.50 11.50-8=3.50

melody won 8 tokens. Trish won 2 more than 5 times as many tokens as melody. What computation will give the number of tokens Trisha won?​

Answers

Answer:

8^5 + 2 = Trisha's Tokens

Step-by-step explanation:

Answer:

42

Step-by-step explanation:

8 x 5 +2

What number is between 0.3 and 7.5

Answers

Answer:

3.9?

Step-by-step explanation:

It should be 3.9 but don’t get mad if I’m wrong

The qoutient of 9 3/4 and 5/8?

Answers

Answer:

do you mean 9 3/4 divided by 5/8, if so, it gives you 78/5

Step-by-step explanation:

answer:

it is 15 3/5

your welcome

match the angle with it's corresponding classification​

Answers

Answer:

∠TPR = right angle

∠SPQ = acute angle

∠QPT = obtuse angle

Step-by-step explanation:

Right angles are 90°, acute angles are angles less than 90°, obtuse angles are angles more than 90°

what is the answer to 1+1

Answers

Answer:

the answer to 1+1 is 2

:) lol

Answer:

2

Step-by-step explanation:

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