GUYS PLEASE HELP I MARK BRAINLIEST 5 STARS IM SORRY ABOUT THE POINTS I ONLY HAVE 13 Andre’s school orders some new supplies for the chemistry lab. The online store shows a pack of 10 test tubes costs $4 less than a set of nested beakers. In order to fully equip the lab, the school orders 12 sets of beakers and 8 packs of test tubes.

Write an equation that shows the cost of a pack of test tubes, t, in terms of the cost of a set of beakers, b.
t=b-4

The school office receives a bill for the supplies in the amount of $348. Write an equation with t and b that describes this situation.
b+t=348

Since t is in terms of b from the first equation, this expression can be substituted into the second equation where t appears. Write an equation that shows this substitution.
b+(b-4)=348

b=176

How much did the school pay for a set of beakers? $____

How much did the school pay for a pack of test tubes? $____

Answers

Answer 1

Answer:

this is not originally by me

Step-by-step explanation:

10t = b - 4

12b+8t = $348

This is a system of equations. I’ll be solving through substitution.

In the first equation. solving for b (the easier variable to isolate) gives you:

b = 10t + 4

Substitute this into the second equation:

12(10t+4) +8t = 348

120t+48+8t = 348

128t = 300

t = 2.34375 —> round it to the nearest cent to get 2.34 dollars

b = 10t+4

b = 10(2.34)+4

b = 27.4 dollars


Related Questions

Write the equation for this function rule. The output is 5 more than the input.

Answers

Y = x + 5, where y is the output and x is the input

Answer:

y= x+5

Step-by-step explanation:

You said "output" means

y

and "input" means

x

, so the only other thing you need to know is "is" means

=

(equals

Please help me thanks please

Answers

Answer:

um all you do is multiply 21 as the length by 14 was the width (LxW)  

Step-by-step explanation:

=294 is your answer    I think ...

directions "rewrite the standard form equations into slope intercept form" 2x+6y=-24

Answers

Answer:

-2x-24/6

pass the x susbtrating divided it by 6

The function f(x)= -x is shown on the graph.
Which statement is correct?
SI
4
The range of the graph is all real numbers less than
or equal to 0.
The domain of the graph is all real numbers less
than or equal to 0.
The domain and range of the graph are the same.
The range of the graph is all real numbers.

-5 4 -3 -2 -11
2
3
4
5
х
-2-
134
-4

Answers

Answer:

answer would be:

The range of the graph is all real number.

AND

The domain and range of the graph are the same.

Step-by-step explanation:

Need the answer in 20 min !! Ty

Answers

Answer:

15

19

14

Step-by-step explanation:

x/-3 is less than -10
solve the inequality​

Answers

Answer:

-7 or just 7

Step-by-step explanation:

can you. pls. solve for X?​

Answers

Answer:

x = 173

Step-by-step explanation:

Answer:

-7

Step-by-step explanation:

90+30=120

180-120=60

x+67=60

x=-7

What is 5y-15x-20=0 in y=Mx+b form

Answers

Answer:

y=3x+4

Step-by-step explanation:

First, you want to get the 'y' by itself.

5y=15x+20

Now, you want to divide everything by 5.

y=3x+4

A water sprinkler sends water out in a circular pattern. How large is the watered area if the radius of the watering pattern is 12 ​ft?

Answers

Answer:

24 pi

Step-by-step explanation:

you basically need to work out the circumeference

circumference=pi times diameter

if the radius is 12, the diameter is 24

so it would be 24 pi

pls mark as brainliest!!!<3

Wwhich expression uses the associative property to make it easier to evaluate 8(1/2x1/3)?
A.8/3(2x33)
B.(8x1/2)1/3.
C.8(1/3x1/2)
D.(8x1/3)1/2​

Answers

The correct answer would be B. (8×1/2)1/3.

Step-by-step explanation:

8 * [(1/2) * (1/3)]

= [8 * (1/2)] * (1/3)

= 4 * (1/3)

= 4/3.

The answer is B because it is easier to calculate 8 * (1/2), which is dividing 8 by 2 to get 4.

What’s the solution for x/3 = 3

Answers

Answer:

x=9

Step-by-step explanation:

x/3=3

1. Multiply both sides by 3

x/3 * 3 = 3*3

2. 3 and 3 cancel out

x=9

Answer:

What's the question?

Step-by-step explanation:

PLEASE HELP ASAP!!

Which is the best approximation for the value of 102?

Answers:

A.) 10
B.) 11
C.) 50
D.) 51

Answers

Answer:

D

Step-by-step explanation:

What number should go in the space?
Multiplying by 1.15 is the same as increasing by _____%.

Answers

Answer:

115%

Because to get a percent from a decimal you multiply by 100 so you move the decimal twice to the right

Can SOMONE help ASAP I don’t understand the diameter of a circle plz show me how y’all got the awswer plz!!!! It’s the top one

Answers

The area is 3.14 for number 6

Answer:

Step-by-step explanation:

the top one... which is I am assuming asking for the diameter?

Formula = d=2r  

so 2x4 which is 8

But if you were wanting number 6

the formula is A=πr2

which would be 3.14 x 1^1 = 3.14

you take the diameter and square it and then multiply it by pi

A square has an area of 72 square inches. What is the side length?

Answers

Answer:

8.5

Step-by-step explanation:

:)

A pet shop offers an iguana for $\color[rgb]{0.35,0.35,0.35}\$80$ and a parakeet for $\color[rgb]{0.35,0.35,0.35}\$40$. During a sale, Chris bought the iguana at a $\color[rgb]{0.35,0.35,0.35}40\%$ discount and the parakeet at a $\color[rgb]{0.35,0.35,0.35}55\%$ discount. The total amount saved on Chris’s new pets was what percent of the total of their original prices?

Answers

Answer:

Ok me la p3l4swkekbdjwkkagdy2hk

Darren has just unplugged his fridge so it can defrost. Thefreezer is at 17 degrees and warms up at 11 degrees an hour.The fridge part is at 23 degrees and rises 8 degrees per hour.How many hours will it take for both the fridge and thefreezer to be the same temperature? What is thetemperature change in that time span?

Answers

Answer:

im not sure

Step-by-step explanation:

wish i could help!! :((

bUT THANKS for the pointssssssss

Answer:

they intercept at (2,39)

Step-by-step explanation:

so, the starting point is the y int, and the rate it warms up is the slope so you need to create an equation that follows y=mx+b, then you can use a graphing calculator like desmos, to graph the equation.

the equations would be y=11x+17 and 8x+23, x represents hours.

Billy has 5 1/4 yards of wire if he uses for is 4 7/8 yards to make a fence how much would he have left​

Answers

Answer: 3/8
Reasoning: 5.25 – 4.875 = 0.375, transferred back into a fraction would be 3/8

help me plz its algebra 1

Answers

Answer:

C. x > -7 and x <= 3

Step-by-step explanation:

-3 < x + 4 <= 7

Subtract 4 from the three expressions.

-7 < x <= 3

-7 < x means x > -7.

Then you have x <= 3.

Answer: C. x > -7 and x <= 3

Can somebody help me. Will mark brainliest

Answers

Answer:

the first two reason are given then the last one is cpctc

A car travels 72 miles on 6 gallons of gas. At that rate, how much gas will it need to travel 204 miles?

Answers

Answer:

17 gallons

Step-by-step explanation:

First find how many miles it can travel with 1 gallon which would be 72÷6 = 12 So 1 gallon can takes it to 12 miles

Do 204÷ 12 = 17

Answer:

17 galloons

Step-by-step explanation:

72 Miles= 6 galloons

144 miles = 12 galloons

204 miles = 17 galloons

in every 12 miles is equivalent to 1 galloon of gas so basically when you divide 204 into 12 you will get 17. you need 17 galloons of gas

list the integers that satisfy both these inequalities, 2x+9 -12

Answers

Answer:

x < -10.5

Step-by-step explanation:

list the integers that satisfy both these inequalities, 2x+9 <-12

Subtract 9 from  both sides;

2x +9 - 9 < -12-9

2x < -21

x < -21/2

x < -10.5

Hence all the integers are values of x less than 10.5

Arrange the 9 digits in three arithmetic sums. Using three of the four operations of addition, subtraction, multiplication, or division. Use no signs except the signs using those operations. Here is an example

You must use digits 1 - 9 and only ONCE

3 + 4 = 7

9 - 8 = 1

30 / 6 = 5

The above example is not correct, because it does not contain 2, and three is repeated.

Answers

Answer:

i. 5 + 4 = 9

ii. 2 x 3 = 6

iii. 8 - 7 = 1

Step-by-step explanation:

Given: The basic arithmetic operations: addition, subtraction, multiplication or division.

           Digits from 1 - 9

Using three arithmetic operations - addition, subtraction, multiplication, and the given digits, the following three expressions can be formed:

i. 5 + 4 = 9

ii. 2 x 3 = 6

iii. 8 - 7 = 1

It can be observed that there is no repetition of digits in the above expressions as required.

Joanna is driving 185 miles to visit her family. She drives 68 miles in the morning, stops for lunch, and then drives the rest of the distance. How many miles did she drive after lunch?

Use the variable m to represent the number of miles she drove after lunch.

Which equation represents this situation and its solution?


m + 68 = 185; m = 117

68m = 185; m = 17

m + 185 = 68; m = 117

185m = 68; m = 17

Answers

Answer:

The equation represents this situation and its solution are m + 68 = 185; m = 117 ⇒ A

Step-by-step explanation:

Let us solve the question

∵ Joanna is driving 185 miles to visit her family

∴ The total distance she is driving = 185 miles

∵ She drives 68 miles in the morning

d[tex]_{M}[/tex] = 68 miles

∵ She stops for lunch and then drives the rest of the distance

∵ m represents the number of miles she drove after lunch

d[tex]_{L}[/tex] = m miles

∵ d[tex]_{L}[/tex] + d[tex]_{M}[/tex]  = the total distance she is driving

m + 68 = the total distance she is driving

∵ The total distance she is driving = 185 miles

m + 68 = 185

The equation represents this situation is m + 68 = 185

→ To solve the equation subtract 68 from both sides

∵ 68 - 68 + m = 185 - 68

m = 117 miles

The solution is m = 117

The cost to rent a truck is $75 flat fee, plus $0.55 per mile driven. The table below shows the total cost of the renting the truck for the first four miles.

Answers

Answer:

75+ 0.55x = total amount

75 + (0.55 X 60) = $108

Step-by-step explanation:

x is a variable and represents the number of miles you drive, since you drive 60 miles you should figure out how much is 60 miles then add the flat fee of 75

solve for n -4.2n-1.7=2.08

Answers

Answer:

n= -0.9

Step-by-step explanation:

-4.2n-1.7=2.08 ( move the constant to the right)

-4.2n = 2.08 + 1.7( calculate)

n = -0.9

5
Select the correct answer
Which system of equations is represented by this graph?

Answers

Y=2-3x
Y=-4 -2/5x
I think

what is the simplified expression for this ?

Answers

Answer:

I think it is 14.1421356237. I needed you can round it down to 14.14.

1. Find the Surface Area
10 km
3 km
8 km
6 km
It’s a 3D object

Answers

Answer:

120 km²

Step-by-step explanation:

make it braintliest please

Madison has only dimes in her pocket . Which amount of money could she have ?

A.) 46 cents

B.) 67 cents

C.) 50 cents

D.) 28 cents

Answers

Answer:

c

Step-by-step explanation:

Letter “ C “ is the answer
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