The solutions for the following equations are:
1. 2x + 1 = 7, x = 3
2. 4x + 7 = 11, x = 1
3. 2x - 3 = 7, x = 5
4. x + 3 = 4, x = 1
5. 3x - 11 = 19, x = 10
How do you calculate the values?1. 2x + 1 = 7
2x = 7 - 1 = 6
2x = 6
divide both sides by 2
x = 6/2, x = 3
2. 4x + 7 = 11
= 4x = 11 - 7
= 4x = 4
divide both sides by 4
x = 4/4, x = 1
3. 2x - 3 = 7
= 2x = 7 + 3
= 2x = 10
divide both sides by 2
x = 10/2, x = 5
4. x + 3 = 4
= x = 4 - 3
x = 1
5. 3x - 11 = 19
3x = 19 + 11
3x = 30
divide both sides by 3
x = 30/3
x = 10
learn more about linear equations: https://brainly.com/question/2030026
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NO ONE IS HELPINNGGGG PLZZZZ 30 PTS +brainliest
Answer:
studyyy that is allll
Step-by-step explanation:
study
Answer:
360°
Step-by-step explanation:
It kind of seems like a trick question, but as far as I'm concerned, it's more or less the same question as the 1st one you answered.
Need help
What is the equation of a line that passes through the point (0, -2) and has a slope of -3?
y = -2
y = -2x - 3
y = -3x - 2
y = -3
Answer:
y = -3x - 2
Step-by-step explanation:
Since the line passes through the point (0, -2), -2 is the y-intercept
Using the slope-intercept form for a line we have
y = -3x - 2
What graph represents the equationy = 2x – 3?
Answer:
linear graph
Step-by-step explanation:
because the equation of the line is straight
PLEASE HELP. it is in the attachment
Answer:
<JKL=123
Step-by-step explanation:
57+57=114
360-114=246
246/2=123
<JKL=123
Answer:
angle JKL=123 degrees
Step-by-step explanation:
since sides of a rhombus are parallel, angle JKL is supplementary to angle KJM (or same side interior) so angle JKL is 180-57=123 degrees
The cubed root for 50
Answer:
125000
Step-by-step explanation:
Answer:
125000 is your answer
Step-by-step explanation:
pick me brainliest alex
Which is the median of this set of data?
18
22 11 21 78 11
A 20.5
B 21
C 18
D) 19.5
Find the geometric mean of the numbers. If necessary, give the answer in simplest radical form.
25 and 29
The geometric mean is
Write a rule for the linear function in the table.
A.
f(x) = –x + 1
B.
f(x) = x – 1
C.
f(x) = x
D.
ƒ(x) = –x
Answer:
i keep getting different stuff
Step-by-step explanation:
4 x − 5 + y = 0
x + 6 y = 5
6 x − 3 y =12
3 x + y = 16
6 x − 3 y = 12
3 x + 4 y = − 5
hallar el color de x en la siguiente figura
Step-by-step explanation:
[tex]105 (2 \times - (11)[/tex]
14 = -2s -8
Solve for s
Answer:
s = -11
Step-by-step explanation:
14 = -2s - 8
22 = -2s
2s = -22
s = -11
14= -2s -8
+8 +8 Add 8 to both sides to isolate -2s
22= -2s
--- ----
-2 -2 Divide -2 by both sides
-11=s This is the answer.
You are supposed to place them in the order they are supposed to go in, that's all its asking. Need some help!!
Answer: the 3 and 2 first then 40 divided by 8 then 8x2 then you can put the rest in whatever order i used pemdas I think it should be correct
Step-by-step explanation:pemdas
Find the sum.
3/7+-1/7
Answer:
2/7
Step-by-step explanation:
set the equation as 3/7-1/7
by adding a negative to a positive you're subtracting
Answer:
2/7
Step-by-step explanation:
adding a negative is the same thing thing as subtracting a positive
so
3/7 + (-1/7) = 3/7 - 1/7 = 2/7
Please help 40 points!!!! What's a Translation of (x+15, y-20). WILL MARK BRAINLIEST FOR RIGHY ANSWER
Answer:
x= y-15
Step-by-step explanation:
hope it helps
Which angles in the picture are NOT supplementary?
2 and 3; 1 and 4
1 and 2; 2 and 3
1 and 3; 2 and 4
4 and 1; 3 and 4
Answer:
1 and 3; 2 and 4
Step-by-step explanation:
Supplementary angles add up to 180 degrees, which is a straight line.
we can see that angles 2 and 3 make the / line, as do 1 and 4
1 and 2 make up the \ line, while, as mentioned above, 2 and 3 make /
4 and 1 is the same as 1 and 4 so they still create / and angles 3 and 4 make the \
\angle a∠aangle, a and \angle b∠bangle, b are complementary angles. \angle a∠aangle, a measures 59^\circ59
∘
59, degrees.
What is the measure of \angle b∠bangle, b?
Answer:
31°
Step-by-step explanation:
because angle a and angle b are complementary they equal 90 degrees in total
a+b=90
since angle a = 59°
59+b=90
so you use subtraction property of equality and subtract 59 from both side of the equal sign
59+b=90
-59 -59
b= 31°
Daniel used to collect baseball cards as a kid. He purchased a particular
card for $30 in 2006 and the value of the card increases by 2.5% per year.
How much is his card worth now (in 2021)? Use units and round
appropriately.
Answer:
[tex]y < 85 \div \div 9614 = 88[/tex]
Ты лоххх
pleaseeee help i need to turn thiis in and i have no idea what it is!!
Answer: You will need 250 boxes of popcorn to meet your $300 goal.
Step-by-step explanation:
Answer:
5 boxes of popcorn makes 300 usd
Step-by-step explanation:
You deposit $100 in a savings account. The account earns 11% simple interest per year.
a. What is the interest earned after 10 years?
The interest earned is $
after 10 years.
b. What is the balance after 10 years?
The balance is $
after 10 years.
Answer:
a. ----> $10b. ----> $110Step-by-step explanation:
principle ( p ) = $100time ( t ) = 10 years rate ( r ) = 11%simple interest = (p × r × t)÷ 100 = ( $100 × 11 × 10 )÷ 100 = 11000 ÷ 100 = $110interest = simple interest - principle interest = $110 - $100 = $10MARK ME AS BRAINLISTPLZ FOLLOW ME
can you please help me with this problem
A two digits number is 21 times the difference and 350% of the product of its digit. Find the quotient of the digit of number
6x+8> −16 please help
Answer:
x = 4
Step-by-step explanation:
I hope this helps sorry if its wrong
I need help plz and thank you
Answer:
10
30
18
Step-by-step explanation:
A coin is flipped 10 times and lands on heads 8 times. What is the theoretical probability that the coin will land on tails on the next flip?
20%
80%
50%
100%
Answer:
pls mark brainlest Even though it landed on heads 8/10 times, ther's still a 50% chance that it will land on tails.
A. Complete the table below by evaluating each expression
with the given value of the variable. Use the back sheet of
this
paper
for your solution.
m = -3
m = 4
1. m - 5
2. 6m- + 8m - 16
3. 10 - 3m?
4. m'+ 4m + 2
5. 8m - 3
Answer:
1. -8, -1
2. 14, 112
3. -17, -38
4. 17, 82
Step-by-step explanation:
plug in the value of m into the expression. for example, m - 5 where m = -3 would be -3 - 5 = -8
Answer:
1. -8, -1
2. 14, 112
3. -17, -38
4. 17, 82
Step-by-step explanation:
plug in the value of m into the expression. for example, m - 5 where m = -3 would be -3 - 5 = -8
Which of the following statements is not true?
-3.2 > -4.1
-1.5 = -1.50
-0.6 < 0.3
-3.7 > -3.1
Answer:
-3.7>-3.1
Step-by-step explanation:
because it's negative and numbers that used to be greater are smaller when their negative
Write 9 x 1 + 3 x 1/10 + 4 x 1/ 1000
Answer:
A
Step-by-step explanation:
A group of 50 students at a day camp got to choose an activity to do. 21
chose to make a craft, 16 chose to play volleyball and 13 chose to go on
a nature walk. What percent chose to make a craft?
Brainly.com
2-19-21
Liz's math test included a survey question asking how many hours students spent studying for the test. The scatter plot below shows the relationship between how many hours students spent studying and their score on the test. A line was fit to the data to model the relationship.
Complete question :
Liz's math test included a survey question asking how many hours students spent studying for the test. The scatterplot and regression line below show the relationship between how many hours students spent studying and their score on the test.
The fitted line has a slope of 15.
What is the best interpretation of this slope?
Answer:
C.)
The model predicts that the score will increase 15 points for each additional hour of study time.
Step-by-step explanation:
The slope of a regression line represents the rate of change :
From the formula :
Rise / Run = (y2 - y1) / (x2 - x1).
The slope is a Coefficient which shows how much the dependent variable changes per unit change in the independent variable.
Hence, for a slope value of +15, which is positive, meaning an increase ; then the score obtained will increase by 15 per additional unit increase in hour of study.
Answer:
B and 96
Step-by-step explanation:
Khan academy
2 is what percent of 40?
2 is 5% of 40
Hope it is useful
You deposit $250 in an account. The account earns $20 simple interest in 4 years. What is the annual interest rate?
Answer:
5.00
Step-by-step explanation:
20/4 years = 5 per year