Mathematics High School

Calculate the value of x for the equation 7x +3+2= 26.
A. 2
B. 3
C. -3
D. 21

Answers

Answer 1
The answer is B because 26-2 is 24 and 24-3 is 21 and 21/7 is 3 therefore x=3
Answer 2

Answer:

3

Step-by-step explanation:

here's your solution

=> 7x + 3 + 2 = 26

=> 7x + 5 =26

=> 7x = 26 - 5

=> 7x = 21

=> X = 21/7

=> x = 3

hope it helps

Related Questions

A stack of one dozen cookies of diameter
5 in. exactly fits in a cylindrical container of
volume 179.715 in.3. Which is the thickness of
each cookie?

Answers

Answer:

.763 in for each cookie

Step-by-step explanation:

[tex]179.715 =\pi (2.5)^{2} h\\179.715= \pi (6.25)h\\179.715=19.635h\\h=9.153\\[/tex]

After you solve for the height you would divide it by 12 to get the thickness of one cookie which is .763 in.

Please help if possible :)

Answers

Answer:

4.5

Step-by-step explanation:

any value of XYZ divided by the corresponding value from RST = 4.5 the scale factor


A city has a population of 320,000 people. Suppose that each year the population grows by 7%. What will the population be
after 15 years?
Use the calculator provided and round your answer to the nearest whole number.

Answers

7•15=105
Population will increase by 105%
100+105=205

320,000. 100%
x. 205%

x=320,000 • 205% divided by 100%
x=656,000 people

suppose you borrow $300 at a yearly, or annual, simple intrest rate of 3.4% for 3 years. what values would you use for P,r, and t?

Answers

Answer:

P=300

r= 3.4%

t=3

Step-by-step explanation:

what is the value of A​

Answers

Answer:

There's no picture for me to answer your question.

Step-by-step explanation:

Rebecca has been planting young trees in her garden. The maple tree that is 10 centimeters tall
is growing 2 centimeters per month, whereas the oak tree that is 15 centimeters tall is
growing 1 centimeter per month. In a few months, the two trees will be the same height. How
many months will this take and what will that height be?

Answers

Answer:

It will take 5 months and that height will be 20cm.

Step-by-step explanation:

Let the height of the tree be h cm and the number of months be m.

Maple tree

Initial height= 10cm

Total height= 10cm +2(number of months)

h= 2m +10 -----(1)

Oak tree

Initial height= 15cm

Total height= 15cm +1(number of months)

h= m +15 -----(2)

When the height of the two trees are the same,

2m +10= m +15

Solve for m:

2m -m= 15 -10

m= 5

Substitute m=5 into either equation 1 or 2 to obtain the height.

When m=5,

h= 5 +15

h= 20

DONT ANSWER IF YOU DONT KNOWWWWWW . Click All that apply:)

Answers

Answer:

1.Location

2.shape

3.orientation

Step-by-step explanation:

Answer: Orientation

Step-by-step explanation:

Basically how the shape looks like on a graph for example a right side up triangle would look different from a upside down triangle

Assignment
Active
Solving for Unknown Values
Use parallelogram ABCD. What are the values of x and
y?
А
44-3
B
y =
3.x - 9
42
D
37
С

Answers

Answer:

a diagram is necessary. please provide a diagram.

What is 3.45 written as a percentage?

Answers

Answer:

345%

Step-by-step explanation:

Factor out the GCF:
-9n^5 + 3n

Answers

Answer:

3n or -3n([tex]3n^{4}[/tex]-1)

Step-by-step explanation:

i hope its correct!!!

^^

Answer: 3n(-3n^3 + 1)

Step-by-step explanation:

List five examples of materials and equipment that can be used for math activities.

Answers

Answer:

compass

protecter

scale

pencil

Hence, the fives examples are explained.

What is the mathematics?

Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes

(1) Ruler

(2) Set-squares

(3) Compass

(4) Divider

(5) Protactor

Hence, the fives examples are explained.

To know more about the maths

https://brainly.com/question/12789483

#SPJ5

Write a rational number between -3 and -4.

Answers

Answer:

-3.25

Step-by-step explanation:

Answer:

-3.25

Step-by-step explanation:

sorry I'm wrong.....im not that good at math

Select the irrational numbers.
A. 39
B. 72
C. V111
D. 122
E. 144

Answers

The only irrational number there is C

there are 30 cities in a country. Each city has 4 highways coming out of it. How many highways connecting 2 cities are there in this country?

Answers

Answer:

29

Step-by-step explanation:

There would be 29 highways connecting 2 cities

need answer. please help​

Answers

9x+1=7x+13
2x=12
X=6
UW=7(6)+13
UW=42+13
UW=55

In each equation, select an operation to make the equation true.
12 ___ -15 = 27
5. -18 ___ -¾ = 24

Answers

first one : 7/2
11/8 for second one

Can someone help me with this problem ??

Answers

B= 120° because all triangles equal 180° so 19°+41° = 60 and 180° -60 equals 120°


A= 120 because B and A are vertical angles

Y= 22° because 120 +38= 158 and 180-158 = 22°

Answer:

a = 120

b = 120

y = 22

a and b and vertical angles

Step-by-step explanation:

angles A and B are vertical angles so they're equal.

you can find angle b because all the angles in a triangle add up to 180

19 + 41 + B = 180

b = 180 - 19 - 41

b = 120

and since theyre equal, that means

a = 120 as well.

since you know a = 120 you can find y.

120 + 38 + y = 180

y = 180 - 120 - 38

y = 22

A rectangular prism has a volume of 56 cubic inches. Find one possible set of measurements
for the base area and height of the prism.

Answers

29 cm is the heights
The answer is 29 centimeters

The measure of ∠DBE is (0.3x−22)° and the measure of ∠CBE is (0.2x−55)°. Find the value of x.

Answers

(0.3x-22) + (0.2x-55) =90
0.5x=167
X=334
I’ve attached my work...
Hope it helps!!
Have a nice day :O

A runner covers a distance of 1200m with an average speed of 4m/s. How long does it take to run this distance? Then calculate the time in min.

Be the first answer for Brainliest, please I need help.

Answers

Answer:

5mins

Step-by-step explanation:

well i did 1200 divided y 4 then divided that answer by 60

Bella can run a mile in 9.54 minutes. Linda can run a mile in 8.22 minutes. How much faster can Linda run than Bella? Justify your reasoning.

Answers

Answer:1.16 times

Step-by-step explanation:

Given

Bella can run a mile in 9.54 minutes

Linda can run a mile in 8.22 minutes

We know, [tex]\text{distance=speed}\times\text{ time}[/tex]

Speed of Bella, for running a mile is

[tex]\Rightarrow v_b=\dfrac{1}{\frac{9.54}{60}}=\dfrac{60}{9.54}\\\\\Rightarrow v_b=6.29\ mph[/tex]

Speed of Linda, for running a mile is

[tex]\Rightarrow v_l=\dfrac{1}{\frac{8.22}{60}}=\dfrac{60}{8.22}\\\\\Rightarrow v_l=7.29\ mph[/tex]

So, Linda is faster than Bella, as her speed is more compared to Linda.

Linda is  [tex]\frac{9.54}{8.22}=1.16[/tex]  times faster than bella

HELP ME PLZZ I NEED HELP WITH THIS

Answers

Answer:

25 + 11 hope this helps

Step-by-step explanation:

answer is the third one

Find the value of the marked angles in each of the following ( see image ).

Please show workings.

The only given angles are 62° and 85°.

The angle to look for is marked by “))”​

Answers

Answer:

(180-62)

118

180-118=62

180-85=95

180-(62+95)

180-157

23

Answer:

23°

Step-by-step explanation:

The inscribed is the cyclic quadrilateral.

The opposite angles are supplementary in cyclic quadrilaterals.

The angle opposite to 85° is:

180° - 85° = 95°

The missing angle of the triangle is:

180° - (62° + 95°) = 23°

Watch help video
In ADEF, the measure of ZF=90°; the measure of ZD=67°, and FD = 7.4 feet. Find
the length of EF to the nearest tenth of a foot.
E
X
67°
F
D
7.4

Answers

Answer:

A.

Step-by-step explanation:

please help

ABC = ADC . Find y.​

Answers

Answer:

y is 7

Step-by-step explanation:

Can someone tell me a proportion to convert 5 pounds to ounces asap. pls someone reply quick

Answers

Answer:

5 pounds = 80 ounces

Hope it helps!!!

Find the total surface area of the triangular pyramid

A. 98.6 ft

B. 123.6 ft

C. 99.5 ft

D. 201 ft

E. 103 ft

F. 118.1 ft

Answers

the answer is C- 99.5ft :)

less than 0 and greater than -10

Answers

Answer:

-5

Step-by-step explanation:

Answer:

see the explanation

Step-by-step explanation:

I dont understand what you want here

here are the numbers which satisfy this statement

-1,-2,-3,-4,-5,-6,-7,-8,-9

here is the inequality

0>x>-10

If the flea is to the left of zero and the absolute value of its location is 3.6, where on the number line is it?

Answers

Answer:

Uhhh.... -3.6?

what does y = 2.5x - 10 equal?

Answers

Answer:

Step-by-step explanation:

x= y+10

-----------------

    2.5

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