Answer:
2(-1*x)-1=2(-1*x)-1+2(-1)
Step-by-step explanation:
-2+2x-1=-2+2x-1+-2
-3+2x=-3+2x-2
-3+2x=-5+2x
2x=-8+2x
0=-8
I probably messed up somewhere
1.The ratio of boys to girls in a homeroom at berkmar middle is 3:4 if there are 12 boys how many girls are there in the homeroom ? 2.The total number of students enrolled at berkmar middle is 1,400 students if the ratio of boys to girls is also 3 to 4 for the school how many students are boys are boys and how many students are girls at berkmar school a800boys,650girls b.467boys,350girls c.600boys ,800girls d.467boys,933girls
Answer:
None of the options are correct, the correct answer is 1,050 boys and 350 girls.
Step-by-step explanation:
A ratio of 3:4 can be turned into a percentage by dividing 3 by 4. This would give us 0.75 or 75%. This means that the remaining 25% (100-75 = 25) are girls in this ratio. If there are 12 boys we can find the total amount by dividing 12 by 0.75 and then multiplying that answer by 0.25 (25%) in order to find the amount of girls in that ratio, like so...
12 * 0.75 = 16 total
16 * 0.25 = 4 girls
If there are a total of 1,400 students we can find how many are boys and how many are girls by simply multiplying by the percentages.
1,400 * 0.75 = 1,050 boys
1,400 * 0.25 = 350 girls.
Apparently, none of the options are correct, the correct answer is 1,050 boys and 350 girls.
Answer:
iuvvvvvvvvvvvvvv
Step-by-step explanation:
uyfvfv
3/4 + (1/3 divided by 1/6) - ( -1/2)
Answer:
k knkjj6879
Step-by-step explanation:
797990-988078i9
Answer:
3 1/4
Step-by-step explanation:
3/4 + (1/3÷1/6) - (-1/2)
3/4 + (6/3) - (-1/2)
3/4 + 2 + 1/2
3/4 + 8/4 + 2/4
13/4
3 1/4
SHOE COLLECTION: Marquise, Bron'Tavious, and JayDarius each have a shoe collection of Nike Air Vapor Max shoes. Marquise has two times as many pairs of shoes than Bron'Tavious and JayDarius have fifteen more pairs of shoes than Bron'Tavious. All together they have ninety-five pairs of shoes. (a) How many pairs of shoes Marquis have? (b) How many pairs of shoes does Bron'Tavious have? (c) How many pairs of shoes does JayDarius have? Provide evidence and how you got your answer.
Answer:
(a) The number of shoes that Marquise has is 40 pairs of shoes
(b) The number of pairs of shoes that Bron'Tavious has is 20 pairs of shoes
(c) The number of pairs of shoes that JayDarius has is 35 pairs of shoes
Step-by-step explanation:
The given information are;
The number of shoes that Marquise has = 2 × The number of pairs of shoes that Bron'Tavious
The number of pairs of shoes that JayDarius has = The number of pairs of shoes that Bron'Tavious + 15
The total number of pairs of shoes they have all together = 95 pairs of shoes
Let the number of pairs of shoes that Bron'Tavious has = X. Therefore, we have;
The number of shoes that Marquise has = 2 × X
The number of pairs of shoes that JayDarius has = X + 15
The total number of pairs of shoes they have all together = X + X + 15 + 2 × X = 95
X + X + 15 + 2 × X = 95
4 × X + 15 = 95
4 × X = 95 - 15 = 80
X = 80/4 = 20
∴ X = 20
(a) The number of shoes that Marquise has = 2 × X = 2 × 20 = 40
The number of shoes that Marquise has = 40 pairs of shoes
(b) The number of pairs of shoes that Bron'Tavious has = X = 20
The number of pairs of shoes that Bron'Tavious has = 20 pairs of shoes
(c) The number of pairs of shoes that JayDarius has = X + 15 = 20 + 15 = 35
The number of pairs of shoes that JayDarius has = 35 pairs of shoes.
What is a requirement of supplementary angles? Supplementary angles must be adjacent. Supplementary angles must be nonadjacent. The measures of supplementary angles must add up to 90°. The measures of supplementary angles must add up to 180°.
Answer:
the measure of supplementary angles must add up to 180
Step-by-step explanation:
complementary angles add up to 90°
angles on a straight line are supplementary angles which add up to 180°
The measure of supplementary angles must add up to 180. The correct option is D.
What is a complementary angle?An angle is a shape created by two rays that share a terminus and are referred to as the angle's sides and vertices, respectively. Angles created by two rays are in the plane where the rays are located.
The complementary angles are defined as the angles having the summation of 180 degrees. The angles made by the straight lines are termed complementary angles.
The supplementary angles are the angles between the two lines that will be 90 degrees.
Therefore, the measure of supplementary angles must add up to 180. The correct option is D.
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Gail read of a book on Monday and of the book on Tuesday. What fraction of the book did she read on Monday and Tuesday?
This is a test so it would be great if you could help! I suck at math lol
Answer:
3/2
Step-by-step explanation:
Order y pairs, you could do x pair if u wanted.
(9,3,3)
(6,2,2)
If u divided 9/6 it gives you 3/2 same with the other two pairs.
Can an intersection be just one point?
Answer:
It really depends on the figure. But most times and in most cases, yes.
Math class , help me please help me please
Answer:it’s C just trust me please
Y=-1/2x+1 what is the slope
Hello there! :)
y=-1/2x+1
The slope is -1/2.
Remember y=mx+b (slope-intercept form)
m is the slope (-1/2)
b is the y-intercept (1)
Hope this helps!
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[tex]MysteriousNature[/tex]
Retake:will give brainliest
Answer:
5
Step-by-step explanation:
what are 245 times 1/10
Answer:
24.5
Step-by-step explanation:
multiplying by 1/10 is the same as multiplying by 1 and then deviding by 10, so 245/10=24.5
Help plz plz plz I need it ASAP
Answer:
The y-value is 3
Step-by-step explanation:
I hope this helps
Are the following lines parallel, perpendicular, or neither? -4x-5y=-4 and 10x-8y=-1
Answer:
perpendicular
They are neither parallel nor perpendicular as they have different slopes.
First line equation in form of y = mx +c is:
y = (4x-4)/5
and second line equation is :
y= -((10x+1)/8)
Round 86,623 to the nearset thousands
Answer:
86,623 rounds to 87,000
Step-by-step explanation:
ten thousand thousand, hundred ten one
8 6 , 6 2 3
When rounding to the thousands, we look at the hundreds.
Since it is 5 or greater, we round the thousands up one
6 becomes 7
86,623 rounds to 87,000
Solve.
5
2x+
1
2x=27
1
2+
7
2x
The value of x is
Answer:
x=−339
Step-by-step explanation:
i think
How do I write 5/3x+y=8 in standard form
Answer:
5x+3y+24
Step-by-step explanation:
f(x) = 10x - 15. What value of x makes f(x) = 75?
Answer:
x = 9
Step-by-step explanation:
f(x) = 10x - 15
f(x) = 75
Plug in 75 for f(x)
75 = 10x - 15
add 15 from either side
90 = 10x
divide either side by 10
9 = x
Answer:
x=9
Step-by-step explanation:
Set the function equal to 75 and solve for x.
75=10x-15
add 15 to each side
90=10x
divide each side by 10 to isolate x
9=x or x=9
Between which two consecutive whole numbers is v32
y=-5/2x-5
find slope plz
Answer:
-5/2
Step-by-step explanation:
this is in the form y = mx+b
m is the slope, and b is the y-intercept
so m is -5/2
slope = -5/2
i need help with this
5x² + 2 = 12 square roots
Which of the following statements is not true about reflections?
Answer:
That a reflection does not preserve size, shape, or angles
Step-by-step explanation:
A reflection is a isometric transformation. So it does preserve size, shape, and angles. So if the answer says "It does not preserve size,shape, or angles" then that answer is not true
. On a family road trip, Mr. Peters travels 130miles in 2 hours. At this rate, how many miles will he travel in 30 minutes? *
Answer:
First, we will divide 130/2 = 65. This is how much miles he travels in 1 hour. Then, we divide 65/ 2 = 32.5 or 32. Mr. Peters travel 32.5 milies or you can say it as 32.
I hope this helps!
Step-by-step explanation:
Which set of points is collinear? Please answer ASAP
{(4,2), (-2,-4), (0,-1)}
{(6,-9), (-1,-1), (2,3)}
{(0,-2), (-4,2),(-1,-1)}
{(-2,-8), (-1,-4), (3,9)}
Answer:
third one
Step-by-step explanation:
the slope is one that's why
what graph has slope that best represents this rate
PLZZZ HELP WILL GIVE 10 POINTS
What is the distance between point A and point B? A number line ranging from -8 to 8 with point A at coordinate -6 and point B at coordinate 7 Enter your answer in the box. The distance between points A and B on the number line is ( ) units
Answer:
AB = 13 units
Step-by-step explanation:
From the figure attached,
A number line has been given ranging -8 to 8.
Two points A and B are at -6 and 7 respectively.
Distance between these points A and B = |B - A|
AB = |7 - (-6)|
AB = 13
Therefore, distance AB = 13 units will be the answer.
What is the slope of the line that passes through the points (1,-1) and (-2, 25 points
8)? *
-1/3
-3
-9
Answer:
Your answer is -3 happy to help :)))
Use the figure to find a+b+d + e
A. 330°
B. 325°
C. 290°
D. 300°
[tex]a + b + 35 + d + e = 360[/tex]
Subtract the sides of the equation minus 35
[tex]a + b + d + e = 360 - 35[/tex]
[tex]a + b + d + e = 325[/tex]
So the correct answer is : (( B. 325° ))
_________________________________
And we're done.
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Answer:
(c) 290
Step-by-step explanation:
How many feet does a wheel with a diameter of 12 inches travel after two revolutions
Using the circumference formula we know that the wheel of a diameter 12 in will cover 6.26 ft.
What is the Circumference of the circle?The circumference of a circle or ellipse in geometry is its perimeter.
That is, if the circle were opened up and straightened out to a line segment, the circumference would be the length of the arc.
The curve length around any closed figure is more often referred to as the perimeter.
Now, we know that the radius is 12/2 = 6 in.
Then circumference will be:
= 2πr
= 2π6
= 37.6
= 37.6 * 2
= 75.2 in
We know that:
1 inch = 0.083 ft
75.2 inch = 6.26 ft
Therefore, using the circumference formula we know that the wheel of the diameter 12 in will cover 6.26 ft.
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The maximum speed of a car on a trip is 60 mph right and solve an inequality that represents the number of hours it takes a car to travel 300 miles
Answer: 5 hours
Step-by-step explanation:
It would take five hours for the car to drive 300 miles if it goes at 60 mph.