Answer:
y = 10
Step-by-step explanation:
y - 7= 3
Add 7 to each side
y-7+7 = 3+7
y = 10
Answer:
y = 10
Step-by-step explanation:
y - 7 = 3
y = 7 + 3
y = 10
Hope that helps!
I need to know which numbers go in what sections.
Please help!!
in a school 3/8 students are boys and 850 are girls.fi nd the number of boys in the school
I
Answer:
Answer: Not too Sure... Maybe 318
is (3,8) a solution to this system of eqautions?
y=7x+8
y=x+1
Yes or No?
Answer:
Step-by-step explanation:
plug the numbers in and see if it is true
x=3, y=8
y=7x+8
8=7(3)+8
8=29
is not true, so it is not a solution. even if it might be a solution for the other equation, it is not true for this equation so it is not a solution for this system
how to find an equation: since y=7x+8 and y=x+1, then
7x+8=y, and y=x+1
7x+8=y=y=x+1
7x+8=x+1
6x+8=1
6x=-7
x=-7/6
y=x+1
y=-1/6
solution: (-1 1/6, -1/6)
Cindy drives her car 25 miles from her workplace to her home. The trip takes 1/2 hour. What is her unit rate in miles per hour?
Answer:
Unit rate = 50m/h
Step-by-step explanation:
Distance = 25 (x2) = 50 ( basically make the den 1 and wht
Time = 1/2 hr (x2) = 1hr u do to den do to num)
Unit rate = 50m/h
HEEEEEEEEEELPPPPPPP..................
Answer:
Step-by-step explanation:
(2,6) (4, 18)
(18 - 6)/(4 - 2) = 12/2= 6
slope: 6
y - 6 = 6(x - 2)
y - 6 = 6x - 12
y = 6x - 6
f(x) = 6x - 6 slope int form
y int (0, -6)
Encontrar la media, mediana, moda y rango de los siguiente valores:
84,91, 72,68,87, 78,65,87,79.
Answer:
La mediana es 79 la moda es 87 la media 87 y él rango es 26
Step-by-step explanation:
Espero te ayude ;)
The mode, median and the range are 87, 79 and 26 respectively
Given the data 84,91, 72,68,87, 78,65,87,79., we are to get the median, mode, and range of the data.
The mode is the number that occurs the most from the given data. Since 87 occurs twice, hence the mode is 87The median is the number in the middle after arrangement. On arranging, we will have:
65, 68, 72, 78), 79, (84, 87, 87, 91
From the data, we can see that the median value is 79Range = Highest - lowest
Range = 91 - 65
Range = 26
Hence the range of the data is 26Learn more on measure of central tendency here: https://brainly.com/question/17726154
Alex scored a 75% on his history test if he correctly answered an 18 question how many questions did Alex answer incorrectly
Answer:
24
Step-by-step explanation:
18 is 75% of 24.
A rapid strep test is often given in a clinical setting so that, if needed, antibiotics can begin as soon as possible. Researchers at Cochrane.org evaluated the effectiveness of rapid strep tests and found that one type had a sensitivity (ability to correctly detect people with strep) of 85.4% and a specificity (ability to correctly identify people who do NOT have strep) of 95%
Fill in the following chart, assuming that you have a group of 10,000 people, 15% of whom actually have strep throat.
Patient is given a rapid strep test
Result is positive Result is negative totals
Has strep throat
Does not have strep
Totals 10,000
For a population of patients similar to those described in the stem of this problem, use the chart find each of the following probabilities. Write you answer as an abbreviated probability statement with your answer to four decimal places without using a percent symbol. For example, P(strep) = 0.15
A) The probability that a randomly chosen patient has strep throat and tests positive
B) The probability that a randomly chosen patient tests positive for strep throat.
C) The probability that a randomly chosen person actually has strep throat, given that they have tested positive.
Answer:
Follows are the responses to this question:
Step-by-step explanation:
Follows are the table to this question:
[tex]positive \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ negative \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ total[/tex]
[tex]\text{strep value} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 1281\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 219 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 1500 \\\\[/tex]
[tex]\text{not the strep value} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 425 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 8075 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 8500 \\\\ \text{total} \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 1706 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 8294 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 10000 \\\\[/tex]
In point a:
[tex]P( \text{step and positive test}) = \frac{1281}{10000}=0.1281[/tex]
In point b:
[tex]P(\text{positive test}) =\frac{1706}{10000} =0.1706[/tex]
In point c:
[tex]P \text{(strep | positive test)} =\frac{1281}{1706} =0.7509[/tex]
How do I solve x, y, z?
Answer:
z=[tex]\sqrt{14^{2} -5^{2} }[/tex]
z=13.08
(5)[tex]\sqrt{171}[/tex]=14x
x=4.67
y=[tex]\sqrt{5^{2} -4.67^{2} }[/tex]
y=1.79
if it helps, please give me brainliest
The legend on a map states that 1 inch
is 250 miles. If you measure 3 inches
on the map, how many miles would
the actual distance be?
lengths of two sides of a triangle are 6cm and 10cm. the two whole numbers between which the length of third side lie is
Answer:
plz mark me as brainiest
Step-by-step explanation:
10-6=4
10+6 =16
4 >x>16.
CAN SOMEONE PLEASE HELP ME!!!!!!!!!
Answer:
12(m +1) > 18m - 3
12m + 12 > 18m - 3
12+3 > 18m - 12m
15 > 6 m.
m < 15/6
m < 2.5
4th option is correct.
Answer:
{m| m < 2.5}
Step-by-step explanation:
m < 2 1/2,m < 2.5 , m ∑ [-∞, 5/2]
hope that helped!
can someone help me with a two step equation that will be x=2
Answer:
i can help
Step-by-step explanation:
Answer:
Step-by-step explanation:
2
en un día de trabajo una pastelería ha producido 100 pasteles, de los cuales (2/5 en fracciones) tienen crema y (1/4 en fracciones) de la producción de pasteles no tiene crema y el resto son díbeticos ¿cuantos pasteles hay para diabéticos?
tfyhgbuhbj tctf ybubbimihbighv no
Step-by-step explanation:
tdcvyvj j ct ruv yo bb. v
please help me really fast
Answer:
$30.00 fee
$45.00=total bill
$0.10 per minute of usage
x = minutes used
$30.00 + 0.10 per minute = $45.00
$30.00+$0.10(x) = $45.00
$0.10(x) = $45.00-$30.00 = $15.00
x = $15.00/$0.10 = 150 minutes used
Find the midpoint of MN. M(-3,8) and N(-7-6)
Step-by-step explanation:
use the midpoint formula
-3+-7/2, 8+-6/2
(-5, 1)
Find the area of the semicircle. Use 3.14 for pi.
Answer:
25.12
Step-by-step explanation:
πr^2
π4^2 = ~50.27
~50.27/2 = ~25.12
An airplane on autopilo 7 hours to travel 4,998 kilometers. What is the unit rate for kilometers per hour?
sin∅=24/25, find the cos
Answer:
θ=2πn1 + arcsin(24/25), n1 ∈ Z or θ=2πn2 +π−arcsin(24/25) , n2 ∈ Z
Step-by-step explanation:
Hope this helps
Step-by-step explanation:
sin A = 24 / 25
as we know that :
sin ² A + cos ²A = 1
cos ²A = 1 - sin²A
cos ²A = 1 - ( 24/25) ²
cos² A = 1 - 576 / 625
cos ²A =. 625 - 576 / 625
cos ² A. =. 49 / 625
cos A =. √ 49/ 625
cos A = 7 / 25
plz mark my answer as brainlist plzzz .
I hope you will find it useful .
plz it took a really great effort .
P=D•W what does this mean in a formula
Use the balanced scale to find the conversion factor that can be used to convert the number of blocks to the weight of the blocks in pounds.
Balanced scale has 3 one-pound weights on 1 side; 2 question mark weights on other side.
A. 1.5 pounds per block
B. 1.5 blocks per pound
C. 2 pounds per block
D. 3 blocks per 2 pounds
Answer:
A. 1.5 pounds per block
Step-by-step explanation:
The conversion factor shows 2 blocks on the right and three 1 pound blocks on the left. It takes two 1 pound blocks to make 2 and then you get your 3rd block, making it 3 (.5 more than 2.5) needing another block to add a .5
Answer:
Step-by-step explanation:
1.5
One-third of a number added to itself equals 3 times the difference of the number and seven.
Answer:
Step-by-step explanation:
Do this step by step.
Let the number = x
1/3 of a number = 1/3 x
Added to itself 1/3x + x
=
3*(x - 7)
So the equation is
1/3x + x = 3(x - 7) Remove the brackets. Collect 1/3x and x
4/3 x = 3x - 21 Multiply both sides by 3.
4x = 3*(3x - 21) Remove the brackets again
4x = 9x - 63 Subtract 9x from both sides
-5x = -63 Divide by -5
x = -63/-5
x = 12.6
what would be the amount of the bill if the phone is not used during the month?
Answer:
im pretty sure its 25
Step-by-step explanation:
Answer:
25.00
Step-by-step explanation:
I got it correct.
What is the approximate height of the building? Round to the nearest tenth of a foot. feet
Answer:
22.5 feet
Step-by-step explanation:
The approximate height of the building is to be considered as the 22.5 feet that should be Round to the nearest tenth.
Calculation of the height:Since
A 26-foot-long ladder is leaning against a building at a 60 degree angle with the ground.
We know that
sin θ = Perpendicular/Hypotenuse.
So
here we assume p be the Perpendicular
So,
sin60 = p/26.
p = 26*sin60.
p = 22.5
hence, The approximate height of the building is to be considered as the 22.5 feet that should be Round to the nearest tenth.
Learn more about height here; https://brainly.com/question/21005254
Select the correct option from the menu.
Raj determined that the equation 3 (x+3) = 8x - 5x +7 is equivalent to 9 = 7. This means that this equation has:
no solutions
One solution
Two solutions
Infinity many solutions
I am having trouble on figuring out how to write this out to solve it.
The domain is (-infinity,1)(1, infinity) or {x|X=/1} the dash goes through the equal sign
the formula may be h^2x h squared x for expanding using sum/difference
how do I solve this factoring problem?
Find the Perimeter and Area
Answer:
Area = 20.28 cm^2
Perimeter = 16.28 cm
Step-by-step explanation:
The figure is composed of a half circle and a rectangle,
The circle has a diameter of 7 - 2 - 1 = 4cm and the rectangle is of side 2 cm and 7 cm.
Therefore the area is :
Area = A rectangle + Acircle/2 = 2*7 + pi*r^2/2 = 20.28 cm^2
The perimeter is :
Perimiter = 1 + 2 + 7 + Pcircle/2 = 1 + 2 + 7 + 2*pi*r/2 = 16.28 cm
Pl help it’s for a grade
Answer:
c
Step-by-step explanation:
y = -3x + 5? *
What’s the slope of the equation y =-3x+5
Answer:
The slope is -3
Step-by-step explanation:
The formula is y= mx + b
m = slope
b= y intercept
Therefore, the slope is -3
