Answer: 20 boys
Step-by-step explanation:
4+3 = 7 total parts
let x be one part
7x=35
x=5
4x=20
Find the area of the composite figure below.
find the area of the composite figure below 4 ft
4 ft
10 ft
4 ft
4 ft
Answer:
112
Step-by-step explanation:
srry. i meant to put 112 erlier
what's the midpoint of (-10,3) and (0,9)
Answer:
To find the midpoint we need to find the point which is the same distance between the x and y values in both points. For example the distance to a point that will be shared among the 2 x's is -5. -10 (x1) and 0 (second x value) are both 5 units away from -5. to -5 is the x of our new point: (-5, y)
Now do the same for the y value:
9-3=6
6 is the y value of our new point
(-5, 6) is your answer
Hoped this helped!
Step-by-step explanation:
HELP ASAP WHAT IS IT!!!
Answer:
A :)
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
A jeweler wants to make 14 grams of an alloy that is precisely 75% gold.. The jeweler has alloys that are 25% gold, 50% gold, & 82% gold. Choose 2 different alloys that can be used to create one that is 75% gold. pls try to explain with a system of equations ; ;
Given that the jeweler has alloys that are 25% gold, 50% gold, and 82% gold.
As he wants to make 14 grams of an alloy by adding two different alloys that is precisely 75% gold, so one alloy must have a percentage of gold more than 75%.
One alloy is 82% gold and, the second can be chosen between 25% gold, 50% gold, so there are two cases.
Case 1: 82% gold + 50% gold
Let x grams of 82% gold and y grams of 50% gold added to make x+y=14 grams of 75% gold, so
75% of 14 = 82% of x + 50% of y
[tex]\Rightarrow 75/100 \times 14 = 82/100 \times x + 50/100 \times y \\\\[/tex]
[tex]\Rightarrow 75/100 \times 14 = 82/100 \times x + 50/100 \times (14-x)[/tex] [as x+y=14]
[tex]\Rightarrow 75 \times 14 = 82 \times x + 50 \times (14-x) \\\\\Rightarrow 75 \times 14 = 82 \times x + 50 \times14-50\times x \\\\\Rightarrow 75 \times 14 = 32 \times x + 50 \times14 \\\\\Rightarrow 32 \times x =75 \times 14 - 50 \times14 \\\\[/tex]
[tex]\Rightarrow x =(25 \times 14)/32=10.9375[/tex] grams
and [tex]y = 14-x= 14-10.9375=3.0625[/tex] grams.
Hence, 10.9375 grams of 82% gold and 3.0625 grams of 50% gold added to make 14 grams of 75% gold.
Case 2: 82% gold + 25% gold
Let x grams of 82% gold and y grams of 25% gold added to make x+y=14 grams of 75% gold, so
75% of 14 = 82% of x + 25% of y
[tex]\Rightarrow 75/100 \times 14 = 82/100 \times x + 25/100 \times y \\\\\Rightarrow 75/100 \times 14 = 82/100 \times x + 25/100 \times (14-x) \\\\ \Rightarrow 75 \times 14 = 82 \times x + 25 \times (14-x) \\\\\Rightarrow 75 \times 14 = 82 \times x + 25 \times14-25\times x \\\\\Rightarrow 75 \times 14 = 57 \times x + 25 \times14 \\\\\Rightarrow 57 \times x =75 \times 14 - 25 \times14 \\\\[/tex]
[tex]\Rightarrow x =(50 \times 14)/57=12.28[/tex] grams
and [tex]y = 14-x= 14-12.28=1.72[/tex] grams.
Hence, 12.28 grams of 82% gold and 1.72 grams of 50% gold added to make 14 grams of 75% gold.
In one soccer season, Milica saved 155 out of 180 shots on goal. At this rate, about how many saves would she make out of 600 shots on goal? Round the answer to the nearest whole (use Numbers only and don't add any spaces) Saves Shots on Goal 155 180 ? 600
Answer: 1550/3
Step-by-step explanation: it is logically posiblie
Write an equation of the line that passes through (-1,0) and (0,0)
Answer:
f(x) = x * 0
Step-by-step explanation:
Have a great day :)
what is the number of 25% of 32
Answer:
The answer is 8.
Step-by-step explanation:
hope that helps
Find the equation of the line that has a slope of 1/2 and passes through the point (-4,6).
A. x - 2y = -16
B. x + y = -16
C. 2x - y = 8
D. x + 2y = -8
Answer:
c
1/2 × (-4,6) your welcome
What is the solution set of {x | x > -5} ∪ {x | x < 5}?1. the number between -5 and 5
2. the empty set
3. all numbers except -5 and 5
4. all real numbers
Answer:
B
Step-by-step explanation:
Just did it
Answer:
b
Step-by-step explanation:
For the equation y = 2x - 4, decide whether each ordered pair below is a
solution to the equation. *
Yes or No
(0,-4)
(2.0)
(1,5)
(-2,0)
(-3,-10)
Answer:
(0,-4) — (2,0) — (-3,-10) are solutions to the equation
Step-by-step explanation:
Just plug in the x and y values of the set in the equation.
I hope this helps! Please mark me as the brainliest!
Can anyone help me with this?
Answer: X= 3^-1
X= -0.75
Step-by-step explanation:
One week gas $1.25 gallon the next sweet gas was $1.50 per gallon by what percentage to the price increase
Answer:
20%
Step-by-step explanation:
The first step is to calculate the increase
= 1.50-1.25
= 0.25
Therefore the percentage increase can be calculated as follows
= 0.25/1.25 × 100
= 0.2 × 100
= 20%
Hence the price increased by 20%
A certain book had an original rating of 27 out of 30 points on a survey chart. Each month, the rating fell by 3 points. Express the number of points as a function of m, the number of months since the release.
(A) f(m)=3m (B) f(m)=3m−27 (C) f(m)=30−3m (D) f(m)=27−3m (E) f(m)=3−27m
Answer:
D.) f(m)=27−3m
Step-by-step explanation:
Given that:
Original rating = 27
Total possible rating points = 30
Drop in rating point per month = 3
m = number of months since release :
Hence,
F(m) = original rating - drop in rating per month * number of months since release
F(m) = 27 - 3(m)
F(m) = 27 - 3m
10 (2+3)-83 what’s the answer ?
Find the slope of the line.
(2,
Find The Slope Of Line (4,4 )(2,5)
Answer:
-1/2
Step-by-step explanation:
Answer:
[tex]\boxed{\sf Slope=-\frac{1}{2}}[/tex]
Step-by-step explanation:
To find a slope, we use two points of a line, we can find slope of a line by finding the rise over run.
____________________
[tex]\boxed{\sf \sf{Slope}=\cfrac{y_2-y_1}{x_2-x_1}}[/tex]
[tex]\sf \left(x_1,\:y_1\right):\left(4,\:4\right)[/tex]
[tex]\sf \left(x_2,\:y_2\right):\left(2,\:5\right)[/tex]
[tex]\sf slope\: (m)=\cfrac{5-4}{2-4}[/tex]
[tex]\sf m=-\cfrac{1}{2}[/tex]
__________________________
HELP
Write an equation in point-slope form and slope-intercept form
passes through (6,2), slope= (⅔)
Answer:
Step-by-step explanation:
y - 2 = 2/3(x - 6)
y - 2 = 2/3x - 4
y = 2/3x - 2
okay so, i know how to solve by elimination but not when the equation is mixed up like this, how do i get the equation in the right form so i can solve it?
5. Amy has 10 yd of fence to put around a tree. She uses all the fence to make six
sections that are the same length. Which expression does NOT equal the length of one
of these sections in yards?
Answer: See explanation
Step-by-step explanation:
You didn't give the options but let me help out.
From the question, we are informed that Amy has 10 yd of fence to put around a tree and that she uses all the fence to make six sections that are the same length.
The expression that will be equal to the length of one of these sections in yards will be:
= 10 yards / 6
= 1.67 yards or 1 2/3 yards
This means that any option that you see that is different from the answer above will be the answer based on your question.
HELP ME BRUH PLEASEEEE
Answer:
B and C
Step-by-step explanation:
B. 3.5 x 0.98
C. 7/2 x 98/100
David's bowling score is 6 less than 2 times Aaron's score. The sum of their scores is 84. Find the score of each student. Use the variable a for Aaron's score.
Answer:
Aaron's bowling score is 30
David's bowling score is 54
Step-by-step explanation:
The variable representing Aaron's score is = a
The variable representing David's bowling score = d
The sum of their scores is 84.
= a + d = 84...... Equation 1
David's bowling score is 6 less than 2 times Aaron's score.
d = 2a - 6
Substituting 2a - 6 for d in Equation 1
a + 2a - 6 = 84
3a - 6 = 84
3a = 84 + 6
3a = 90
a = 90/3
a = 30
Hence, Aaron's bowling score is 30
d = 2a - 6
d = 2(30) - 6
d = 60 - 6
d = 54
David's bowling score is 54
Is this statement true or false?
r={5, 10, 15, 20} is a solution to 5.5r≤27.5.
true
false
THE ANSWER IS FALSE
Can someone please help me
Answer:
40
Step-by-step explanation:
QUESTION #1
Write the rule to
describe the rotation.
Answer:Hope it helps.
Step-by-step explanation:
Rotation 90 degrees clockwise.
180 degrees would be half way turned and clock wise starts at 12 and goes to 1-12. Counter would go 12-11-10. Think of it as a clock. Tried my best. GL
What number do the blocks represent? Write your answer as a decimal.
Answer:
its 3.303
Step-by-step explanation:
You can solve the equation 2x + 7 = 1 - x by graphing y = 2x + 7 and y = 1 - x and finding the point of intersection
Answer:
x = -2
Step-by-step explanation:
You can also solve for the equation given.
2x + 7 = 1 - x
3x = -6
x = -2
The solution to the equation 2x + 7 = 1 - x is x = -2.
To solve the equation 2x + 7 = 1 - x by graphing, we can plot the two equations on a graph and identify the point where they intersect.
First, let's graph y = 2x + 7 and y = 1 - x on the same coordinate system.
The equation y = 2x + 7 represents a straight line with a slope of 2 and a y-intercept of 7.
The equation y = 1 - x represents a straight line with a slope of -1 and a y-intercept of 1.
Plotting these lines, we can see that they intersect at a specific point on the graph. The coordinates of this point represent the solution to the equation 2x + 7 = 1 - x.
By visually inspecting the graph, we can determine the point of intersection, which is approximately (-2, 3). This means that x = -2 is the solution to the given equation.
To learn more about the equation;
https://brainly.com/question/12788590
#SPJ6
What is the sum of the expression (8 − 4i) + (−2 + 7i)?
GIVING BRAINLIEST. LOTS OF POINTS. Describe a real-life situation that can be modeled by the equation 11x + 5 = 8x + 23
Answer:
See below.
Step-by-step explanation:
Jane and John are each hiking a trail in the city. Jane is on her bike, and John is jogging.
At noon, Jane is at the 5 mile mark and rides at 11 miles per hour.
Also at noon, John is at the 23 mile mark and jogs at 8 miles per hour.
x is the number of hours after noon.
Will Jane catch John? After how many hours?
What is the measure of AC?
Answer:
A. 88
Step-by-step explanation:
A circle is 360 degrees right ? so, 136 cant be right since 136 is almost half of a circle and that angle doesn't look nearly half, 44 and 22 cant be right either since AB is 44 degrees and its growing outwards so it cant be exactly 44 and it cant be less 44 (22)
so your answer will be A. 88
i will give brainliest to the person who answers the question right!!!!
Evaluate 2-^5
Answer:
Its 1/32
Step-by-step explanation:
Please mark brainliest
I’ll mark u as brainlist if u get this right!
Answer:
(30, 32.4)
Step-by-step explanation:
It represents the highest point