Answer:
eric = 15
chris 7
Step-by-step explanation:
Let the questions Chris answered correctly be represented by c
Let the questions Eric answered correctly be represented by e
They both got 22 questions right. This can be represented by this equation :
c + e = 22 --- eqn 1
Chris scored 8 less than Eric. This can be represented by this equation :
c = e - 8 --- eqn 2
Substitute for c in eqn 1
e - 8 + e = 22 .
collect like terms
2e = 30
solve for e
e = 15
Substitute for e in eqn 2
c = 15 - 8 = 7
Which number lies halfway between:
a) 16 and 38
b) 259 and 361
1004 and 2 012?
Answer:
Which number lies halfway between:
a) 16 and 38 = 28
b) 259 and 361 =310
1004 and 2012?
=1058
The midpoint of all the numbers are given below.
What is the midpoint?A location that is halfway between two other points is considered to be a line segment's midpoint. The distance between the midway and each endpoint is the same.
We have to find the midpoint of numbers.
a) 16 and 38
16 + 38 = 54/2 = 27
b) 259 and 361 = 620/2 = 310
c) 1004 and 2012 = 1508.
Therefore, all the middle numbers are given above.
To learn more about the midpoint;
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According to the properties of inequality, when should the inequality symbol be reversed when solving a two-step inequality in the form below?
a x + b greater-than c
when a is positive
when a is negative
when b is positive
when b is negative
Answer:
B. when a is negativeStep-by-step explanation:
Inequality given:
ax + b > cWhen solving we do steps:
ax > c - bx > (c - b)/aAt the second step both sides divided by a.
When a is positive the inequality symbol remains as is, when a is negative we have to divide both sides by -1 as well. This will reverse the inequality symbol.
Correct answer choice is B.
Answer:
b
Step-by-step explanation:
I got it wrong i need it help
Answer:
25
Step-by-step explanation:
Given,
Measurement of <1 = x + 10
Measurement of <2 = 4x + 5
Also, said in the question that both these angles are complementary.
Therefore, by the problem,
<1 + <2 = 90°
=> x + 10 + 4x + 5 = 90
=> x + 4x + 10 + 5 = 90
=> 5x + 15 = 90
=> 5x = 90 - 15 = 75
[tex] = > x = \frac{75}{5} [/tex]
=> x = 15
Now, we have got the value of x so,
Measurement of <1 is
<1 = x + 10 = 15 + 10 = 25 (Ans)
18. Given the following four lines, pick the true statement. Convert
Line 1: 3v = 4x + 3
Line 2: 4y = 3x - 4
Line 3: 3x + 4y = 8
Line 4: 4x + 3y = -6
A. Lines 1 and 4 are parallel
C. Lines 2 and 4 are perpendicular
B. Lines 2 and 3 are parallel
D. Lines 1 and 2 are perpendicular
Answer:
I THIK D. BECAUAE IS PARALLEL
Answer:
Lines 2 and 4 are perpendicular!
Brainliest to right answer
Answer: 32 liters
Step-by-step explanation:
W(0)= 32 so the glass tanks volume is 32
Brooke multiplied 3 and 9 and got 17. Brooke knows her answer is wrong because she knows is should be approximately
Answer: 3 times 9 is 27
Step-by-step explanation:
I need the answer fast ASAP
Answer:
a rotation followed by a dilation
Step-by-step explanation:
they first rotated the figure by 90 degrees, they then dilated by a scale factor of 3
The diagram shows two right-angled triangles. Calculate the value of x.
The value of x in the given diagram is 7cm.
What is tangent of an angle?The tangent of an angle is the ratio of the length of the opposite side to the length of the adjacent side.
According to the given question.
We have a diagram in which we have two right angled triangles.
Now, in the upper right angled triangle
[tex]tan50 = \frac{0pposite side}{5}[/tex]
⇒ 1.19 = 0pposite side/ 5
⇒ opposite side = 1.19 × 5
⇒ opposite side = 1.2 × 5
⇒ opposite side = 6cm
Now, the opposite side w.r.t angle 50 degrees in the upper right angle triangle is a adjacent side w.r.t to angle 38 degrees in the lower right angle triangle.
So, in the lower right angle triangle.
[tex]tan38 = \frac{x}{adjacent side}[/tex]
⇒[tex]0.78 = \frac{x}{6}[/tex]
⇒ x = 0.78 × 6
⇒ x = 4.68
⇒ x = 7cm
Hence, the value of x in the given diagram is 7cm.
Find out more information about tangent of an angle here:
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I need the lateral area, total area, and the volume. Would greatly appreciate your help!
la 4gStep-by-step im so weird
how big are yoongi's feet
Answer:
he's a size 8.5-9 in US mens and 265(mm) korean shoe size
Step-by-step explanation:
pfft hope this helped army
Section 1
Watson wrote an inequality on the board.
x + 10 < 21
Which value(s) make(s) the inequality true?
Select ALL that apply.
which one fills in x
Answer:
x<11
Step-by-step explanation:
x+10<21
-10 -10
x<11
Jane had $60. She spent an average of $5 each day. How many days did
she take to spend all her money?
=
She took
days to spend all her money.
&
Answer:
She took 15 days to spend all the noney
Identify the percent of change as an increase or decrease. 24 songs to 78 songs. Find the percent of change
Answer:
an increase of around 30.76%
Step-by-step explanation:
24 divided by 78 = .307692307....
Answer:
225%
Step-by-step explanation:
78- 24= 54
54/24=2.25
2.25x100=225
Can someone help me
Solve for n. 24 = 3(n -5)
Answer:
n=13
Step-by-step explanation:
24=3(n-5)
24=3n-15
-3n=-24-15
-3n=-39
n=13
If a = 8 and b = 15, then c
=
Hey! Can someone help me?
Answer:
Step-by-step explanation:
there are 4 sixes soo
[tex]6^{4}[/tex]
Answer:
[tex] {6}^{4} [/tex]
-have a nice day
123,456,789x123,456,789=
Answer:
123,456,789x123,456,789= (123,456,789)^2= 152415788*10^16
can i have brainliest please
A box of chocolates contains milk chocolates and dark chocolates in the ratio 4:3
The box contains 35 chocolates
how many milk chocolates are there in the box?
Answer:
20 milk chocolates
Step-by-step explanation:
The first step is adding together 4 + 3. You will get 7. This is the total number of units in the box.
Then, divide 35 by 7. You will get 5 as the answer.
To find the number of milk chocolates, multiply 5 and 4. You will get 20 as the answer.
What is the volume of the figure? 4,536 mm 3 3,402 mm 3 2,268 mm 3 1,134 mm 3 just put answer no explanation
Answer:
The answer is 2,268 mm 3
Step-by-step explanation:
Find the sum of 4x^4 – 5x and 14x + 8.
Answer:
I think the first one is 123x but not sure
Step-by-step explanation:
Answer:
4x^4 + 9x + 8
Step by-step explanation:
4x^4 - 5x + 14x + 8
4x^4 + 9x + 8
Give the coordinates of the point obtained from each reflection.
Reflect the point (8,-7) across the x-axis:
Reflect the point (8,-7) across the y-axis:
please helppp
Determine if the side lengths 6, 11, and 19 form a triangle. If it is a triangle, classify it by its sides.
scalene triangle
equilateral triangle
isosceles triangle
It's not a triangle.
Answer:
Its not a triangle
Are (99 – 11 + 10g) - (12 - 119 + 13) and -3(-10g + 12) equivalent expressions? Explain.
Answer:
)99-11+10g -12+119 -13= 182+10g
)30g-36
Step-by-step explanation:
On a vacation in Puerto Rico. Rose jumped off a cliff
Answer:
ummmm??
Step-by-step explanation:
Help solve!!! Need an answer very very soon!!!
Answer:
30 degrees
Step-by-step explanation:
sin(30 degrees) = 9/18 = 1/2
law...
Answer ASAP!! Please! Will give brainliest!
Find the slope given the following points:
(-1, 2) (3,5)
Answer:
The slope is [tex]\frac{3}{4} \\[/tex]
Answer:
[tex]\frac{3}{4}[/tex]
Step-by-step explanation:
[tex]m = \frac{5-2}{3-(-1)} = \frac{3}{4}[/tex]
The graphs below have the same shape. What is the equation of the blue graph? (apologies for bad quality)
Answer:
The blue graph is translated 3 units to the left and two down, so the new equation would be g(x)=(x-3)^2-2
Please fully explain and thank you a lot
Answer:
If you aren't allowed to use calculators do (1280 - 128pi) but if you are do (877.876140341) Don't forget units in your work and answer.
Step-by-step explanation:
Volume of Rectangular prism = L*W*H = 8*10*16 = 1280in
Volume of Cylinder = pi*r^2*H = 8*pi*r^2
We know that the diameter is 8 (because that's the height of the rectangular prism as stated in the question) and diameter is 2*r thus the radius of the cylinder is 4.
therefore the volume of the cylinder is 8*pi*(4)^2 which is 128pi If you aren't allowed to use calculators do (1280 - 128pi) but if you are do (877.876140341)