Answer:
20
Step-by-step explanation:
If the ratio of boys is 9 there are 90 boys. If 9=90 then 1= 10. 10 x 2 = 20
I hope this helps :0)
20 girls
Step-by-step explanation:
For every 9 boys there are 2 girls, so, if we have 90 boys, 9x10=90 and then since we have the 10 we use it to do 2x10 to get 20 girls
Mr. Muñoz has a coupon for 15% off his entire purchase. He buys binoculars for $105 and hiking boots. He spends a total of $170 before tax.
Write and solve an equation to find how much the hiking boots cost, x, before the discount.
The equation should be 105(0.15)+ x = 170 and the value of x is 154.25
Important information:Mr. Muñoz has a coupon for 15% off his entire purchase. He buys binoculars for $105 and hiking boots. He spends a total of $170 before tax.Equation and calculation:Here we assume the hiking boots cost be x
So, the equation is
105(0.15) + x = 170
15.75 + x = 170
x = 170 - 15.75
x = 154.25
Learn more about the equation here: https://brainly.com/question/16746485
1. Benjamin is saving money for a new laptop. He
already has $50 in his account. Now he plans on
saving $25 per week. Which equation can be
used to calculate y, the total amount of money
Benjamin will have saved after x number of
weeks of saving.
A. y = 25x + 50
B. y = 50x + 25
C. x = 25y + 50
D. x = 50y +25
Im such an idiot for not paying attention in class but someone help PLEASE the assignment is due at 3:05 and its 2:50
Answer:
Help with what?
(7x²+2x-1)-(2x²-5x+3)
Answer:
5x²+7x-4
Step-by-step explanation:
Given: (7x²+2x-1)-(2x²-5x+3)
Distribute: 7x²+2x-1-2x²+5x-3
Rearrange: 7x²-2x²+5x+2x-3-1
Combine like terms: 5x²+7x-4
Your final answer is thus 5x²+7x-4
someone pls help:>>
Explanation:
Imagine that you cross out the top-most square for each step of each diagram. The squares not crossed out have the following counts: 1, 4, 9
This is the sequence of perfect squares. So the rule will have us take the number n, and square it to get n^2. Then we add on the squares we crossed out earlier. This explains the "plus 1" at the end to get the answer of n^2+1
Answer:
[tex] {n}^{2} + 1 \\ \: respresents \: the \: following \: \\ function[/tex]
i hope it helped.
do y’all know this one?
Step-by-step explanation:
For first triangle,
sin 45 = 3 / d
1 / root 2 = 3 / d
d = 3 root 2
For second triangle,
tan 60 = 7 / a
root 3 = 7 / a
a = 7 / root 3
Write an equation where the variable is divided by a number, and a solution is -4/5
Answer:
x/-5
Step-by-step explanation:
Just divide by 5 and the denominator will be 5 meaning x would have to be 4.
Make sure your 5 is negative so the whole equation also ends up negative. x/-5=-4/5
A rectangular living room is 6 meters long and 3 meters wide. What is its area?
Estimate
1/8+4/9
A.5/17
B.3
C.1
D.1/2
Answer:
I would choose A
Step-by-step explanation:
Find the slope of the line through the given points.
(-8,5),(-2,5)
Answer:
the slope of the line=0/6
Step-by-step explanation:
you can use the formula `y-y/`x-x, where (-8,5)=(x,y) and (-2,5)=(`x,`y)
5-5/-2--8
5-5/-2+8
0/6
Therefore, the slope of the line=0/6
Answer: The slope is 0 (undefined)
Step-by-step explanation:
A simple way to find slope of a line when given two points is to employ the use of a formula that essentially calculates it for you. This formula is (y2-y1)/(x2-x1) with y representing the y coordinates and x representing the x coordinates. For example you could write this as (5-5)/(-2-(-8)) which of course gives you an answer of 0 (undefined) because anything divided by 0 is automatically 0 (undefined) and as we see in our formula we are subtracting 5 from 5.
BRAINLIEST
Plot the following co-ordinates and find the fourth point D to make a square A (-1,3) B (1,-1) C(5,1).
Once you have found the missing coordinate use pythagoras to calculate the length of the sides.
Answer:
Next coordinate is (-1,-3)
Step-by-step explanation:
draw a graph in graph paper and mark all coordinates
Please help me I would really appreciate it!!!!?!!
Jeffrey's birthday cost $21, plus an additional $2 for each guess he invites. How many guests can there be, at most, if jeffrey can afford to spent a total of $131 on his birthday party?
Answer:
55 guests
Step-by-step explanation:
131 = 21 + (2x)
subtract 21 from both sides
110 = 2x
x = 55 guests
Answer:
55 guests
Step-by-step explanation:
if he can afford to spend a total of $131, then you subtract the birthday cost ( $21 ) and divide the answer of those two ( $110 ) by $2 ( the amount for each guest ) which is 55, therefore, 55 is the largest number of guests Jeffrey can afford.
PLS HELP!!!!! Combine like terms: x + 2x + 4
Answer:
3x+4
PLEASE MARK ME AS BRAINLIEST PLEASEEEEEE
Step-by-step explanation:
brainliest for ripromano please anybody else dont answer
Answer:
ahhh you didnt have to !!
Step-by-step explanation:
thank you so much, ill do the same!! check my page for a question w free brainliest
Give the slope between the points
(2,5) (14,-4)
Answer:
[tex]-\frac{3}{4}[/tex]
Step-by-step explanation:
Slope
(2, 5) and (14, -4)
_______________
When we solve for slope within two points, we have to follow the formula of slope.
[tex]\frac{y^2-y^1}{x^2-x^1}[/tex]
X and Y - The first and second number in both points
1 and 2 - The first or second number within one point
Substitute :
[tex]\frac{-4-5}{14-2}[/tex]
[tex]\frac{-9}{12}[/tex]
Simplify :
[tex]-\frac{3}{4}[/tex]
Answer:
Rewritten in slope-intercept form
y = mx + b
The answer is
m = -3/4
^^^^^^^^^^^^^^^^^^^^^^^^
Answer:
117
Step-by-step explanation:
brainliest please
Please Help!
Give the largest whole number that could equal the length of the side in the picture.
Answer:
8
Step-by-step explanation:
We can use triangle inequality, let AC = x:
x+4 > 5
x+5 > 4
9 > x
Simplifying:
x>1
x>-1
9>x
Thus: 9>x>1
So the Largest whole number is 8
Find the net change in the value of the function between the given inputs. h(t) = t2 + 2; from −5 to 8
Answer:
39
Step-by-step explanation:
Given the function :
h(t) = t² + 2
From t = 5 to t = 8
when, t = 5
h(5) = 5² + 2
h(5) = 25 + 2
h(t) at t = 5 ; equals 27
when, t = 8
h(5) = 8² + 2
h(5) = 64 + 2
h(t) at t = 8 ; equals 66
Net Change :
h(8). - h(5)
66 - 27 = 39
how do you convert 7/6 into a mixed number or how do you covert fractions into a number in general.
Answer:
1 1/6
Step-by-step explanation:
You can convert 7/6 into a mixed number by subtracting 1 from the improper fraction, because 1= 6/6
7/6 -6/6= 1 1/6
Answer:
7/6 would be 1 1/6
Step-by-step explanation:
To make it a number in general turn into a decimal.
What is the value of each expression?
7/8 + 4/8
Answer:
7/8 + 4/8 = 1 3/8.
Step-by-step explanation:
In words the answer is 1 and 3/8.
95x4.5 please help!!!
Answer:
[tex]427.5[/tex]
Step-by-step explanation:
[tex]95\times4.5[/tex]
Multiply:
[tex]95\times4.5=427.5[/tex]
427.5 is your answer.
Rotate the triangle 180 degrees around the origin
8. Solve for x. Round to the nearest tenth. (4pts)
55°
7
x=
Answer: I think 2
Step-by-step explanation:
Because
Name the form of the equation, then find the y-intercept of the following lines.....
y=2/5x+1
Answer:
y = 1
Step-by-step explanation:
To find the y-intercept (s), substitute in 0 for x and solve for y.
y = 2/5 x (0)+1
y-intercepts (0, 1)
The cost of producing x units of a certain commodity is c() - 1000 +370x + 7x2,
What is the average rate of change of C with respect to x when the production
level is raised from x= 100 to x= 120?
Step-by-step explanation:
cost to produce 120 units
= C(120) = 1000+5.7(120) + .7(120^2) =
= 11764
cost to produce 100 units = C(100)
= 8570
rate of change = (11764-8570)/(120-100)
= 3194/20
= 159.70 dollars/unit
repeat the process for 100 to 101
Find the circumcenter of ΔABC with vertices A(12, 0), B(0, -6), C(0, 0)
help me ASAP!!!!!! Please
What do studies tell about people's way of life in traditional societies??
(Note: Please don't give me silly answer)
Step-by-step explanation:
buffet or tells about the beliefs values behaviour and material object that constitute a people's way of life
Answer:
In sociology, traditional society refers to a society characterized by an orientation to the past, not the future, with a predominant role for custom and habit. Such societies are marked by a lack of distinction between family and business, with the division of labor influenced primarily by age, gender, and status.
Step-by-step explanation:
Hope it is helpful.....
Given 6, 8, and 11 as the three sides of a triangle, classify it as one of the following acute, right or obtuse. Please help and thank you
9514 1404 393
Answer:
obtuse
Step-by-step explanation:
You may remember that side lengths of 3, 4, 5 make a right triangle. Doubling those lengths to 6, 8, 10 will still give a right triangle.
The given triangle has a longest side (11) longer than would be appropriate for a right triangle (10), so the largest angle is larger than 90°.
The triangle is obtuse.
__
Comparison of a triangle to a right triangle with two sides the same is one of several ways the triangle can be classified. You can use the Law of Cosines to find the largest angle, or you can use a triangle solver (as we have below).
In case you don't recall that 3-4-5 makes a right triangle, you can use the Pythagorean theorem to find the longest side of a right triangle with the given shorter sides:
hypotenuse = √(6² +8²) = √100 = 10
Your long side is longer, so your largest angle is larger than 90°.
Law of Cosines:
angle = arccos((6² +8² -11²)/(2·6·8)) = arccos(-21/96) ≈ 102.6°
GIVING BRAINLIEST! The triangles below are similar. How tall is the tree? Please show process.
Answer:
18m tall?
Step-by-step explanation:
Answer:
20 m
Step-by-step explanation:
The scale factor between the two triangles is 1/10 because of how 3/30 is 1/10.
Therefore we can calculate the height of the tree by multiplying the height of the smaller triangle by 10 to find the height of the tree.
2*10 = 20m