write an equation in slope-intercepet form (9,-2) and (-3,2)
Answer:
Step-by-step explanation:
slope=(2-(-2))/(-3-9)=4/(-12)=-1/3
eq . Of line is y-(-2)=-1/3(x-9)
or y+2=-1/3 x+3
y=-1/3x+3-2
y=-1/3 x+1
Solve the system of equations by the substitution method.
X + 8y = 21
3x + 5y = 6
Step-by-step explanation:
the first one if you are solving for x it will be x=21-8y
if you are solving for y it will be y =21/8 - x/8
the second one will be if you are solving for x x = 2 -5y/3
solving for y is y=6/5-3x/5
Brian bought 215 pounds of strawberries. In the afternoon his brother ate 56 of the strawberries. How many pounds of strawberries did his brother eat?
Hi there!
Step By Step:
We know that 215 pounds are about 215 strawberries since every strawberry are about 1 pound.
Let think about this... 215 pounds are 215 strawberries.
If his brother ate 56 of the strawberries, it means that his brother ate 56 pounds of the strawberry.
We can also think like this... 56/215
Final Result: 56 pound sof strawberries.
Write
11/16
as a decimal.
Answer:
[tex]0.6875[/tex] OR: [tex]0.7[/tex]
Step-by-step explanation:
[tex]0.6875\\0.688\\0.69\\0.7[/tex]
please help me i need it
Answer: im bad at math sowwy
Step-by-step explanation:
(Equivalent Expressions) Which expression is equivalent to 3 + 2x + 6y + 6x + 2 – 2y?
HELP I NEED HELP ASAP CUS THIS IS DUE TODAY
HELP
Answer:
A
Step-by-step explanation:
D=m/v
D=20kg/5m3
D=4kg/m3
A
(2) Need help ASAP -BRAINLIEST
Answer:
B
Step-by-step explanation:
I just took the test and teacher said it
Answer:
b
Step-by-step explanation:
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Tickets for the karaoke talent show sponsored by the Speech Club were priced at $3 for adults and $2 for students. The club treasurer counted 300 tickets sold for a total of $650. Write and solve a system of equations to determine how many adult and student tickets were sold.
Answer:
50 adults and 250 students tickets were sold
Step-by-step explanation:
Given data
Let the number of adults be x and students be y
3x+2y=650------1
x+y= 300---------2
from 2
x= 300-y
put the value of x in 1
3(300-y)+2y= 650
900-3y+2y= 650
900-y= 650
900-650= y
y=250
put the value of y in 2
x+250= 300
x= 300-250
x= 50
Hence 50 adults and 250 students tickets were sold
Formas de encontrar el numero de triángulos en un polígono
Answer:
n-2
Step-by-step explanation:
N sides polygon has n-2 triangles
Given right triangle ABCABC with altitude \overline{BD} BD drawn to hypotenuse ACAC. If BC=10BC=10 and DC=5,DC=5, what is the length of \overline{AC}? AC ?
Answer: [tex]\overline{AC}=[/tex] 12.5
Step-by-step explanation: The triangle ABC and its altitude [tex]\overline{BD}[/tex] is represented in the figure below.
Altitude is a segment of line that link a vertex and the opposite side, forming a right angle.
So, because of [tex]\overline{BD}[/tex], now we have two similar triangles, which means that ratios of corresponding sides are equal:
[tex]\frac{\overline{BD}}{\overline{BC}} =\frac{\overline{AD}}{\overline{BD}}[/tex]
[tex]\overline{BD}^{2}=\overline{BC}.\overline{AD}[/tex] (1)
This is always true for a right triangle and a altitude drawn to the hypotenuse.
Triangle BDC is also right triangle. So, we can use Pythagorean theorem to determine the missing side.
[tex]\overline{BC}^{2}=\overline{CD}^{2}+\overline{BD}^{2}[/tex]
[tex]\overline{BD}^{2}=\overline{BC}^{2}-\overline{CD}^{2}[/tex] (2)
Substituting (2) into (1):
[tex]\overline{BC}^{2}-\overline{CD}^{2}=\overline{BC}.\overline{AD}[/tex]
We want to find f, so:
[tex]\overline{AD}=\frac{\overline{BC}^{2}-\overline{CD}^{2}}{\overline{BC}}[/tex]
[tex]f=\frac{10^{2}-5^{2}}{10}[/tex]
f = 7.5
The length of [tex]\overline{AC}[/tex] is
[tex]\overline{AC}=f+5[/tex]
[tex]\overline{AC}=7.5+5[/tex]
[tex]\overline{AC}=12.5[/tex]
The length of the hypotenuse of triangle ABC is 12.5 units.
Answer:
x = 20
Step-by-step explanation:
A rectangle has length of 80cm and a width 50cm. And a scale factor of 3.5 what is the area in square cm of the dilated rectangle
Answer:
49,000 square cm
Step-by-step explanation:
To get the area of the dilated rectangle, we need the dilated dimensions
We simply multiply the scale factor by the dimensions
we have this as;
3.5 * 50 = 175 cm
and
3.5 * 80 = 280 cm
The area of the dilated rectangle is thus;
280 * 175 = 49,000 cm^2
which mathematical process could be used to find the length of the side of a square, given it's area
Answer:
[tex] \sqrt{x} [/tex]
Step-by-step explanation:
the square root of what ever the area is. Area is length times width, but if all sides are the same then you just have to find the square root.
When Mohammed was born, the baby was 21 inches tall. at his last check up, he was 38 inches tall. what is the percent increase in his growth to the nearest percent? round it to the nearest 100th
this is math btw and im giving 5 star and 15 points.
Answer:
80.95
Step-by-step explanation:
Percentage increase = [tex]\frac{New Value - Old Value}{Old Value}[/tex] *100
=> (38-21)* 100/21 = 80.9523%
The answer round it to the nearest 100th = 80.95%
PLEASE SOMEONE HELP WITH THIS AND EXPLAIN IT!
Answer: x= 11.15
Step-by-step explanation:
Explanation is in the photo attached
Decimals
Percentages
Fractions
1/10
Answer:
0.1
Step-by-step explanation:
its out of 10
Answer:
Fraction: 1/10
Decimal: 0.1
Percentage: 10%
Step-by-step explanation:
I think this is what you meant if i'm wrong just correct me
Find the value of each variable.
Answer:
x = 4
Step-by-step explanation:
the given figure is of an isoceles triangle.
The two angles opposite are congruent(i.e78 degrees) .
That is the sides opposite to them are also congruent.
I. e 4x + 23 = 10x - 1
I. e 4x - 10x = -1 -23
I. e -6x = -24
I. e -x. = -24/6
Dividing by 6 to 24 we get,
-x = -4
therefore by removing the minus sign from both the sides,
the answer comes x = 4
$14.50 is 30% of what number?
A) $45.20
B) $48.00
C) $62.80
D) $52.40
E) $54.00
Answer:
B
Step-by-step explanation:
because its rellevant :)
Answer:
B
Step-by-step explanation:
Look at this table: x 19 5 19 y 2 5 8 Is this relation a function? yes no
Answer:
no
Step-by-step explanation:
Answer: No
Step-by-step explanation:
Last year Anna read 20 books. 5 were non-fiction, 7 were graphic novels and 8 were mystery novels. What is the ratio of graphic novels to total books?
Answer:
7/20 or 7 out of 20 could be graphic novels
Step-by-step explanation:
Someone plz help me
Answer:
its the second option thats the answer
A middle school student reads 48 books in 31/3 years. Find the students reading rate in books per year
Answer: 14 2/5 books per year
Step-by-step explanation:
From the question, we are informed that a middle school student reads 48 books in 31/3 years. The students reading rate in books per year will be calculated as:
= Total books read / Number of years
= 48 ÷ 3 1/3
= 48 ÷ 10/3
= 48 × 3/10
= 144/10
= 14 2/5 books per year
4 divided by 2 (2/5) ???
Answer:
as decimal = 2
as fraction = 1/2
will give brainliest Pleaseeee HELP asap no guessing please
Answer:
S, T & R
Step-by-step explanation:
T is 1/2 of S and R is 1/2 of T
good luck, i hope this helps :)
20 POINTS AND BRAINLIEST
Answer:
1. 234.57
2.150.79
3. too lazy... lol sorry
Step-by-step explanation:
im dum pls
help
4 brainliest
Answer:
2400
Step-by-step explanation:
Answer:
2400
Step-by-step explanation:
240*10=2400
i will give brainliest
Find the slope of the line on the graph.
Write your answer as a fraction or a whole
number, not a mixed number or decimal.
Answer:2/6 i might be wrong but whats the answer choices?
Step-by-step explanation:
Answer:
Step-by-step explanation:
You can see that (0,4) and (1,1) are points on the line. Use their coordinates to determine the slope of the line.
slope = (difference of y-coordinates)/(difference of x-coordinates)
= (1-4)/(1-0)
= -3
A fraction that contains a fraction in its numerator or denominator is
called a(n) ??
Complex fraction.
Hope this helped!
Which of the following statement(s) describes the rate of change of f over the interval 1.5≤x≤3? Select all that apply.
Answer:
error
Step-by-step explanation:
Answer: The rate of change = 2
✔️The rate of change is increasing because the value is a positive value.
✔️The rate of change is also constant over 1.5 ≤ x ≤ 3 since the line is straight.
Step-by-step explanation:
hii pls help me if u can tysm
Answer:
she hit the flo'
next thing yk
shawdy got
low
low
low
low
low
low
low
Step-by-step explanation: