1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
victus00 [196]
3 years ago
6

What is the value of x in the equation 3x - 4y=65, when y=4? N

Mathematics
1 answer:
4vir4ik [10]3 years ago
3 0

Answer:

x =27

Step-by-step explanation:

3x - 4y=65

lets substitute the value of y in the equation:

3x -4(4) =65

3x = 65 +16

3x= 81

x= 81/3

x = 27

You might be interested in
Donna sent her grandson a birthday present. The box weighed 0.875 kilograms and the present itself weighed 6,800 grams. a. What
Nana76 [90]
A) We know that the box weighed 0.875 kg, and the present weighed 6,800 g. However we need the gross weight of the package in kg, so we have to convert the present's weight to kg. There are 1000 grams in 1 kg, so we can divide the present's weight by 100 to find the weight in kg:

\frac{6,800}{1000} =6.8 kg

Now that we have converted to grams, let's add the weight to get the total gross weight:

0.875+6.8=7.675 kg

So the gross weight of the package is 7.675 kg.

b) Shipping costs 74 cents per kg, so in order to find the total cost of shipping for the package, let's multiply the weight of the package by the cost of shipping:

\frac{7.675kg}{1}* \frac{74 cents}{kg}=567.95 cents

However the cost of shipping has to be in dollars. There are 100 cents in one dollar, so we need to divide the amount of cents that shipping costs by 100 to get the total in dollars:

\frac{567.95cents}{100} =5.68dollars

Now we know that the total cost of shipping, in dollars, is equal to $5.68.
7 0
3 years ago
The Leukemia and Lymphoma Society sponsors a 5k race to raise money. It receives $55 per race entry and $10,000 in donations, bu
photoshop1234 [79]
The net amount they raise is the amount they receive minus what they pay in expenses.

They receive:
$10,000 fixed amount in donations
$55 per person

They pay:
$15 per person

If there are x number of entries, they receive 55x from the entries.
Also, they pay 15x for the entries.

The net amount they raise is amount they receive min us amount they pay:

55x + 10,000 - 15x

which simplifies to

40x + 10,0000

They want to raise at least $55,000.
At least $55,000 means $55,000 or more.
They want to raise an amount greater than or equal to $55,000.

Now we write the inequality:

40x + 10,000 >= 55,000

Now we solve the inequality for x, the number of entries.

40x >= 45,000

x >= 1125

They must have 1125 or more race entries to raise $55,000.
6 0
3 years ago
Emily has nickels and quarters. She has 3 fewer
lawyer [7]

Answer:

Step-by-step explanation:

she has 3 quarters

4 0
3 years ago
What is the sum of 0.380 and 0.245​
Harlamova29_29 [7]

Answer:

The sum of 0.380 and 0.245 would be 0.625

4 0
3 years ago
Use the slope formula to find the missing coordinate: R(0,_), S(-4,2) m=5
Delicious77 [7]

Answer

The missing value is 22

step-by-step explanation

The slope formula is

m =  \frac{y_2 - y_1}{x_2 - x_1}

From the question,

m=5

x_2=-4

y_2=2

and

x_1=0

We substitute these values to get,

5=  \frac{2 - y_1}{ - 4- 0}

Simplify

5=  \frac{2 - y_1}{ - 4}

5 \times  - 4=2 - y_1

- 20=2 - y_1

- 20 - 2=- y_1

22= y_1

y_1 = 22

The missing value is 22

5 0
3 years ago
Other questions:
  • How do you use the pythagoreum theorum again? i know the formula is a^2+b^2=c^2 but how do you use it. Use the example 15^2+20^2
    10·2 answers
  • Brian runs 4 miles in 34 minutes. How many minutes per mile does Brian run?
    8·2 answers
  • 1 2/5 x 3/5 in lowest terms please
    6·1 answer
  • Determine whether triangle TJD is congruent to triangle SEK given T (-4,-2), J (0,5), D (1,-1), S (-1,3), E (3,10), K (4,4) and
    9·1 answer
  • Lin bought 3 hats for $22.50. At this rate, how many hats could she buy with $60.00?
    14·2 answers
  • If y is 6 and x is 4 what is y when x is 17
    5·1 answer
  • a soccer league has a ratio of 11:3 of players to coaches. if there are 165 players in the league. how many coaches are there?​
    10·2 answers
  • 7th grade math help me please
    15·2 answers
  • #83 will give brainliest with best response!​
    13·2 answers
  • Which of the following is an example of a theorem?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!