Solve the System of Linear Equations by
Substitution with work
3x - 4y = 19
x=5

Answers

Answer 1
3(5)-4y=19
15-4y=19
subtract 15 from both sides
-4y = 19
divide both sides by -4
y = -1


i think thats what u were trying to ask if not reply back

Related Questions

what figure is this?​

Answers

Answer:

triangular prism

Step-by-step explanation:

Sandra measures the diameter of a hula hoop as 0.7 m. Write and solve an equation to
determine the radius of the hula hoop.

Answers

0.7/2=r

please mark brainliest!!

Figure ABCD is a square. Find the
value of x.
5x 2
D
x + 10
x = [?]

Answers

Answer:

x=3

Step-by-step explanation:

this is so confusing someone please help me out

Answers

[tex] \huge \purple{\tt{Answer:}} [/tex]

step 1 is wrong . The 1st step should be 15² - 9² = c² .

Answer: step A

Step-by-step explanation:

The Pythagorean theorem is a^2+b^2=c^2, where c is always the hypotenuse (the longest side of the triangle). Step A is written as 9^2(thats the a value squared)+15^2(which is the hypotenuse value squared)=c^2. It should be: 9^2+b^2=15^2

Please do at least one of them if someone already did one do the other :D

Answers

Answer:

LOL i belive its 200 because i did this exact same thing yesterday for homework and got it right, good luck on getting the question right! because i got it right for my homework!

Step-by-step explanation:

Solve each equation. Explain your reasoning.
3d + 16 = -2(5 – 3d)

Answers

3d + 16 = -10 -6d
=_3d + 6
= 1

Find the sum of 0.333......and 0.444....​

Answers

Answer:

0.777......

Step-by-step explanation:

0.333...... + 0.444....​..

= 0.777......

Hope it helps :)

Please mark my answer as the brainliest

Step-by-step explanation:

The sum of 0.333.... and 0.444... is 0.777......

Find the y-intercept and write as a point (x, y)​

Answers

Answer:

(0,3)

Step-by-step explanation:

Answer:

The two points- (0,3) (-2,-1)

The y-intercept is (0,3)

The slope is 2

I need help with this

Answers

Answer:

B

Step-by-step explanation:

It's B

3^5 = 243

so the 5th root of 243 is 3

(x^7)^(1/5) = x^(7/5)

(y^10)^(1/5) = 7 ^(10/5) = 7^2

z^(21)^(1/5) = z^(21/5)

karen bought 8 pounds of fruit to make 3 equal-sized fruit salads. What is the weight of each fruit salad?

Answers

24 is your answer. hope this helped!

Answer:

2 2/3

Step-by-step explanation:

HELP need more help giving brainless and 15 points

Answers

Answer:

c

Step-by-step explanation:

1 1/2 x1 1/2 x1 =2 and 1/4

2 and 1/4 x 8=18

EFGH is a square with diagonals EG and HF that intersects at O. What is the measure of m angle HOG

Answers

Answer:

show the whole pic of explanation

How many irrational numbers are there between 1 and 6 ?
1


3


4


10


Infinitely many

Answers

Answer:

The answer is Infinitely many

There are infinite irrational numbers between any pair of numbers, including between 1 and 6.

select the correct button in the table to show whether each statement about the graph below is true or false ​

Answers

Answer:

True false true

Step-by-step explanation:

I think so

which value of x satisfies the equation below? 4x-7+25

Answers

Answer: =4x+18

Step-by-step explanation:

Let's simplify step-by-step.

4x−7+25

=4x+−7+25

Combine Like Terms:

=4x+−7+25

=(4x)+(−7+25)

=4x+18

Answer:

=4x+18

Please answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!

Answers

Answer:

13

Step-by-step explanation:

"Dan" uses 2/3 cup of brown sugar and 1/4 cup of white sugar to make oatmeal bars. How many cups of sugar does he use in all?

Answers

Answer:

the number of cups of sugar he use in all is [tex]\frac{11}{12}[/tex]

Step-by-step explanation:

The number of cups does he use in all as follows:

= Brown sugar + white sugar

[tex]= \frac{2}{3} + \frac{1}{4}\\\\= \frac{8 + 3}{12} \\\\= \frac{11}{12}[/tex]

Hence, the number of cups of sugar he use in all is [tex]\frac{11}{12}[/tex]

(urgent please help!!!!)in computing the mean of 8 numbers, a student mistakenly used 17 instead of 25 as one of the numbers and obtained 20 as the mean. find the correct mean.

Answers

i believe the correct mean is 21!

Answer: 21

Step-by-step explanation:

The student's mean of the 8 numbers is 20; the total of the numbers will be

8 x 20 = 160

If we take out the 17 the  total will be 160 - 17 = 143

If we then replace the 17 with 25 the total rises to 168.

168 divided by 8 = 21

x = 4y squared - 12

Work out the value of x when y=5

Answers

Answer:

0.0000000164

Step-by-step explanation:

x= 4y^-12

for,

y = 5

x = 4×5^-12

x = 4/5^12

x = 4/244,140,625

x = 0.0000000164

PLEASE HELP ME I WILL DO ANYTHING!!!

Answers

Answer:

x=11

Step-by-step explanation:

the angles shown are supplementary so they will add up to equal 180 so we write the equation 180=5x+10x+15 and solve for x

step 1 combine like terms

180=15x+15

step 2 subtract each side by 15

165=15x

step 3 divide each side by 15

x=11

Write and expression for the calculation add 9 to the product of 4 and 5

Answers

Answer:

5×4+9

Step-by-step explanation:

The product of something means to multiply, so you would multiply 5 and 4 together.

Then you would add 9 to that.

Find the missing lengths

Answers

Answer:

5 root 2 for both

Step-by-step explanation:

y=x= 10/root two

= 5 root 2

if my answer helps please mark as brainliest.

Answer:

x = 5*sqrt(2)

y = 5*sqrt(2)

Step-by-step explanation:

Because the triangle is a 45-45-90 triangle, 10 is equal to x * sqrt(2) and x = y.

x = 10 / sqrt(2)

When simplified:

10 / sqrt(2) = (10 * sqrt(2))  / 2 = 5 * sqrt(2)

A pond has 150 fish initially, and the population decreases by 8% each day.
Which equation represents this situation?

Answers

Answer: not sure.. i got 18.75 so i dont rly know if 18 daily or 19if 19 fish daily then the last day would have 5 left

Step-by-step explanation:

A number cube is rolled 24 times and the results are recorded as follows: 2 ones, 4 twos, 7 threes, 4 fours, 3 fives, and 4 sixes. What is the experimental probability of rolling a number greater than 5?

Answers

I would say the answer would be 29.17% because [tex]\frac{7}{24}[/tex]=29.17%

Hope this helps

I'm so sorry if this is wrong

have a great day/night

PLEASE HELP::::::: Triangle PQR has medians QM and PN that intersect at Z. If ZM= 4, find QZ and QM

HELP HELP

Answers

Answer:

value of QZ = 8 units and QM =  12 units.

Step-by-step explanation:

Given: In triangle PQR has medians QM and PN that intersect at Z.

If ZM = 4 units.

In the figure given below;  second median divided the two triangles formed by the first median in the ratio 2:1.

We have to find the value of QZ and QM;

QZ:ZM = 2: 1

Substitute the value of ZM =4 units and solve for QZ;

Multiply both sides by 4 we get;

Now, calculate QM;

QM = QZ+ZM = 8 + 4 = 12 units.

Therefore, the value of QZ and QM are; 8 units and 12 units

I multiply three positive integers that are greater than 1 and get 333. Find one of the numbers.
those who answer first will be marked brainliest !

Answers

Answer: 3, 37

Step-by-step explanation:

Divide by 3, divide by 3 again. 37 is a prime number, so it can't be divided again after that.

Consider the following equation.

x – 0.32x = 0.68x

Which of the following statements matches the mathematical equations?

Question 5 options:

a) Decrease a number by 0.32 is the same as multiplying by 0.68.


b) Decrease a number by 32% is the same as increasing by 68%.


c) Decrease a number by 0.32 is the same as multiplying by 0.32.


d) Decrease a number by 32% is the same as multiplying by 68%.

Answers

Answer:

d) Decrease a number by 32% is the same as multiplying by 68%

Step-by-step explanation:

Given equation:

x - 0.32x = 0.68x

Options (4 of them given)

a) Decrease a number by 0.32 is the same as multiplying by 0.68.

x - 0.32 = 0.68x  ⇒ 0.32x = 0.32Incorrect

b) Decrease a number by 32% is the same as increasing by 68%.

x - 32% = x + 68% ⇒ 0 = 100%Incorrect

c) Decrease a number by 0.32 is the same as multiplying by 0.32.

x - 0.32 = 0.32x ⇒ 0.68x = 0.32Incorrect

d) Decrease a number by 32% is the same as multiplying by 68%

x - 32% = 0.68x ⇒ x - 0.32x = 0.68x ⇒ 0.68x = 0.68xCorrect

what complex numbers graph is shown?​

Answers

Answer:

D.

Step-by-step explanation:

Took the test

Which equation is NOT equivalent to p- 7 = 22? Select all that apply.
A. p-p-7 = 22-p
B. p-7-p = 22 -
C. p - 7 + 22 = 22 - 7
O
D. p - 7 + 7 = 22 - 22
Ep-7 + 7 = 22 +7

Answers

Answer:

c and d

Step-by-step explanation:

i hope this help

if + means × and - means ÷ and × means + and ÷ means - find 6÷8-2+5×20=​

Answers

Answer: C. 6

Step-by-step explanation:

Rephrase the expression

6÷8-2+5×20

6-8÷2×5+20

Do division

6-4×5+20

Do multiplication

6-20+20

Do subtraction

-14+20

Do addition

6

Hope this helps!! :)

Please let me know if you have any questions

Answer:

(C) 6

Step-by-step explanation:

Have a great day

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