Answer:
The answer to the question is -1.32
Step-by-step explanation:
The first step will be to write out the equation that we are working with:
This equation is
[tex]0.2b + 0.6a = 12[/tex]
The next step is to write out the values of the figures that we are substituting:
[tex]a = -1.2 b=-3[/tex]
Substitution in mathematics can best be understood as "something being used in place of another thing". This means that wherever the first variable appears in an equation, the substituting values will replace it and multiply the number it is attached to.
In this case, we will replace the 'b' and the 'a' with the - 1.2 and - 3 respectively.
[tex]0.2(-3) + 0.6(-1.2) = -1.32[/tex]
Answer:
The answer is A. (15,15)
Step-by-step explanation:
edge21
A mechanic is comparing how quickly two kinds of motor oil heat up. He records the change in the temperature (degrees Fahrenheit) of each motor oil over time (minutes) in the same car traveling under the same conditions at the same speed. The graph shows his results for the first motor oil.
The table shows his results for the second motor oil.
image e43bb99419b8473bb60e9585b380f662
What conclusion can the mechanic make about the two kinds of motor oil?
A
The rate of temperature increase for the first motor oil is 0.5°F greater than that of the second motor oil.
B
The rate of temperature increase for the first motor oil is 3°F greater than that of the second motor oil.
C
The rate of temperature increase for the second motor oil is 3°F greater than that of the first motor oil.
D
The rate of temperature increase for the second motor oil is 0.5°F greater than that of the first motor oil.
Answer: C
Step-by-step explanation:
answer.
Which of the following values
satisfies the inequality 9 < 2x + 7 <15
Answer:
1<x<4
Step-by-step explanation:
9<2x+7<15
9+−7<2x+7+−7<15+−7(Add -7 to all parts)
2<2x<8
2 /2 < 2x /2 /< 8 /2 (Divide all parts by 2)
1<x<4
what's the slope in intercept form pls help me
Answer:
y=1x+1
Step-by-step explanation:
Explain how the parts of the balanced hanger compare to the parts of the equation.
7 = 2x + 3
Answer:
There are seven squares on the left side and on the right side there is 2 circles and 3 squares i.e. attached to each other
Step-by-step explanation:
The explanation is shown below:
Given that
7 = 2x + 3
There are seven squares on the left side and on the right side there is 2 circles and 3 squares i.e. attached to each other
Kindly see the picture on the attachment area
A 4-pack of boncy balls costs $1.33. What is the unit price, rounded to the nearest cent?
Answer:
$0.33 per ball
Step-by-step explanation:
haha we meet again.
Divide 1.33 by 4
1.33/4=0.3325
Round to the nearest tenth
0.33
Multiply row 2 by the reciprocal of −40:
4−1−4
0−400
001
−7
40
3
4−1−4
0
0
001
−7
3
Answer:
first answer is 1 second is negative -1 answer for edge 2021
Step-by-step explanation:
correct
Answer:
the first one is 1 , -1
the second one is 4, 0 , -4 , -8
Step-by-step explanation:
i just did it
After Batman brought the Joker to justice, the crime rate in Arkham City decreased by 12\%12%12, percent. Previously, the crime rate was ccc incidents per 100010001000 people.
Which of the following expressions could represent the crime rate in Arkham City after Batman brought the Joker to justice?
Answer:
.88c 22/25c
Step-by-step explanation:
yup
Answer:
.88c 22/25c
Step-by-step explanation:
please help me with this
Answer: The last option, or D
Step-by-step explanation:
35x−35y+21
{(3,7),(5,9),(6,2),(8,7),(5,11),(4,8)} what are the input, or x-values, of the ordered pairs?
Answer:
[(3, 4, 5, 6, 8)]
Step-by-step explanation:
The x-values are the first value of each point
in the scale drawing what will the length of the West side be?
-3x + y = -14
x= -2y + 14
Which variable should an expression be substitute for?
9514 1404 393
Answer:
x
Step-by-step explanation:
There is already an expression given for x, so that is the easiest variable to substitute for.
Substituting for x using the second equation, you have ...
-3(-2y+14) +y = -14
6y -42 +y = -14
7y = 28
y = 4
x = -2(4) +14 = 6
The solution is (x, y) = (6, 4).
_____
Substitution for x is the easiest.
__
The first equation could be rearranged to give an expression for y:
y = 3x -14
Then that can be used to substitute for y in the second equation. My lazy brain judges that to be more work.
In the triangle PQR, PQ= 7, QR= 8, and PR= 14. Which is the largest angle?
a.) this cannot be determined
b.) /PRQ
c.) /PQR
d.) /QPR
A N D ! !
Which combination of measurements could form a triangle?
a.) 11m, 21m, 33m
b.) 6m, 9m, 16m
c.) 16m, 24m, 38m
d.) 22m, 28m, 51m
Answer:
the largest angle=<PQR
c.) 16m, 24m, 38m
The largest angle of the triangle is ∠PQR and the measurements of the triangles are 16m, 24m, 38m
What is a Triangle?A triangle is a three-sided flat figure or polygon with three angles.
A triangle has three vertices, and the internal angles amount to 180°.
∠A + ∠B + ∠C = 180°
The area of the triangle = ( 1/2 ) x L x B
For a right angle triangle
From the Pythagoras Theorem ,
if a² + b² = c² , it is a right triangle
if a² + b² < c² , it is an obtuse triangle
if a² + b² > c² , it is an acute triangle
Given data ,
Let the triangle be represented as ΔPQR
Now , the measure of side PQ = 7
The measure of side QR = 8
The measure of side PR = 14
Now , for a triangle , the angle opposite the smallest side of a triangle has the smallest measure.
And , the angle opposite the largest side has the largest measure
So , the angle opposite to the side PR = ∠PQR
Therefore , The triangle's largest angle is ∠PQR
Now , the measure of the sides of the triangles are given and
a + b > c
when a = 16 , b = 24 and c = 38
16 + 24 > 38
40 > 38
Therefore , the measures 16m, 24m, 38m form a triangle
Hence , the triangles are solved
To learn more about triangles click :
https://brainly.com/question/16739377
#SPJ2
Use the graph below to answer the following question.
find the slope.
A. 2
B. –one-half
C. –2
D. one-half
Can someone help me??
Answer:
(8,8)
Step-by-step explanation:
The first equation says y and x are the same, so any x in the second equation can be replaced with a y, so
y = 2x - 8 and y = x, substituting x for y gives
x = 2x -8, subtract x from each side, add 8 to each side, get
8 = x
substitute that value back into the first equation
y = x, x= 8, so y=8
...............................
WX=XY, VX=XZ Given
Angle WXV = Angle YXZ Vertical Angles theorem
Triangle VXW = Triangle YXZ Side angle Side postulate
WVX = YZX because corresponding parts of congruent triangles are congruent
A movie theater seating is arranged with 15 seats in the front row, 14 seats in the middle row, and 26 seats in the back row. The ticket-taker randomly assigns seats to people as they enter the theater. What is the probability that the first person who enters the theater will be assigned a seat in the front row? Ratio Answer in simplest form.
Answer:
3/11
Step-by-step explanation:
i did this question it 3/11
GEOMETRY The sum of the measures of the angles of a trapezoid is 360 degrees. Find the missing measure
Answer:
70
Step-by-step explanation:
Add them all first
100+110+80=290
Then subtract
360-290
Juan bought a laptop for $650 and a power adapter for $59. If the sales tax rate is 6%,
what was the total tax that Juan paid?
Answer:
$42.54
Step-by-step explanation:
total spent- 709
6/100*709= 42.54
if my answe helps please mark as brainliest.
The diameter of a circle is 12 miles. What is the circle's circumference? Use 3.14 for .
Answer:
should be 37.68 miles
Step-by-step explanation:
12 x 3.14
Classify the angle whose measure is 34°
Answer:
Acute angle
Step-by-step explanation:
Answer:
34° angle is an acute angle
figure out the questions do all give brainliest
Please help, thank you.
The question is in the picture
D.kite
youre welcome hihihi
Find the perimeter of the trapezoid !!
Answer:
44
Step-by-step explanation:
12+12+7+(5^2+12^2).
5^2=25
12^2=144
144+25=169
The square root of 169 is 13.
Add all numbers together:
12+12+7+13=44
P=44.
Put these numbers in order from least to greatest.
-10/20, 7 3/30, 0.2
Find the value of x in the parallelism. Please respond ASAP
Answer:
60=x+23(opposite angle of parallelogram are equal)
60-23=x
x=37 is answer.
whats an"an amount, shared equally with 4 people "
well if that's in a math problem then its division. Because you are sharing equally.
8)
Which equation represents a proportional relationship?
A)y = x/8
B) y=8/x
C) y=x/8 +8
D) y=8/x +8
Answer:
c
Step-by-step explanation:
c is the best
in an equilateral triangle the sides are 14sqrt7. find the length of the altitude
Answer:
1
Step-by-step explanation:
Help please!
Thank you
Answer:
G
Step-by-step explanation:
Red marble probably currently: 12/32 = 3/8
Guess and check (using the multiple choice answers):
F: 12 + 13 / 32 + 13 = 25/45 = 5/6; does not equal 3/5
G: 12 + 18 / 32 + 18 = 30/50 = 3/5; does equal 3/5
H: 12 + 28 / 32 + 28 = 40/60 = 2/3; does not equal 3/5
J: 12 + 32 / 32 + 32 = 44/64 = 11/16; does not equal 3/5
K: 12 + 40 / 32 + 40 = 52/72 = 13/18; does not equal 3/5
Cuanto da la siguiente operación matemática : 5√225 ?
Answer:
75
Step-by-step explanation: