Answer:
-6
Step-by-step explanation:
So far this semester, Brian is averaging a score of 63 points on math tests, which is 10% lower than his average last semester. What was the average of his scores last semester?
Answer:
Step-by-step explanation:
So far this semester, What was the average of his scores last semester?
Let us represent last semester average score as x
We are told that:
Brian is averaging a score of 63 points on math tests, which is 10% lower than his average last semester.
This is expressed Mathematically as:
63 = x - 10%
63 = x - 0.1
Collect like termd
x = 63 + 0.1
x = 63.1
A pet store has two tanks of tropical fish. The first tank contains 5 blue fish and 2 yellow fish and the second tank contains 7 blue fish and 2 yellow fish. If Keisha randomly purchases a fish from each tank, what is the probability that both fish will be blue?
Answer:
It would be B
Step-by-step explanation:
You need to add them both together and then once you do that divide everything and you'll get the answer of b.
A marine biologist dove 40ft below sea level to study the
coral and her drone is flying 20ft above sea level. What is
the distance between the marine biologist and the drone?
Answer:
60 feet
Step-by-step explanation:
2. Calculate the change in temperature when it changes from 8°C to -11 °C?
Answer:
19
Step-by-step explanation:
From 8-->0 =8
+ from 0--->-11=11
11+8
HELP SOADOPAICOPIOPMCIPOAW
5. Lily had 7 cupcakes.Each box had 38 cupcakes.She sold 158 cupcakes.How many cupcakes does she have left?
HELP, it looks blurry sorryyy! 15 pointss
Tell whether the triangle with the given side lengths is a right triangle.
14 ft, 48 ft, 50 ft
Answer:
It can be a right angle with hypotenuse 50 ft, adjacent 14 ft and height 48 ft
MATHHHHHHHHHHHHHHHHH
Answer:
the answer is 465.32
Step-by-step explanation:
need help i don’t know what the answer is
Answer:
r = 5
Step-by-step explanation:
(r + 8)^2 = r^2 + 12^2
r^2 + 16r + 64 = r^2 + 144
16r = 80
r = 5
Answer:
r = 5
Step-by-step explanation:
Using Pythagoras' identity in the right triangle ABC
AC² = BC² + AB²
(r + 8)² = r² + 12² ← expand left side using FOIL
r² + 16r + 64 = r² + 144 ( subtract r² from both sides )
16r + 64 = 144 ( subtract 64 from both sides )
16r = 80 ( divide both sides by 16 )
r = 5
Find the median and mean of the data set below:
21,0,36,30,13,32
Answer:
Mean: 22
Median: 25.2
Step-by-step explanation:
The mean is the sum of all the numbers in a set divided by the number of terms in a set.
The median is the middle value of the numbers when the numbers in a set are arranged from least to greatest. If there is two middle numbers, the median is the average of the two numbers.
I hope this helps!
The number of cats to the number of dogs owned by the students in a class is 5:3. There are 95 cats, how many dogs are there?
Please answer, Thank you!
Answer:
61.5
Step-by-step explanation:
6.755-3311=3444
3444 divded by 56=61.5
Please explain to me how to get the answer! I know it’s 1/16 but I don’t know how to get it. See picture below!
Answer:
Step-by-step explanation:
4³/ 4^5
64 / 1024
= 1/16
Are the given values in the table enough information to show an exponential function instead of a linear function? If not, explain why not then write the equations for both an exponential and linear function represented by the table.
I think this a linear function. The graph has a constant flow of going up. In other words, it is linear.
last month I joined an online strategy game. when I joined there were 20 members, since then the number of members has decreased by 80% how many members are there now
Answer:
4
Step-by-step explanation:
80% of 20 is 16. 20-16=4
read the photo best answer will get brainliest
Answer:
Step-by-step explanation:
First of all it should be like fractions
So -2/3 becomes -10/15
and -3/5 becomes -9/15
-9/15 is greater than -10/15
-3/5 is greater than -2/3
Answer:
-2/3 < -3/5
Explanation:
to convert the fractions to equivalent forms, we need to make sure that they have the same denominator (number on the bottom). the lowest common multiple of both 3 and 5 is 15, hence:
-2/3 = -10/15 (×5)
-3/5 = -9/15 (×3)
thus, we can see that -10/15 is smaller than -9/15, and -2/3 is smaller than -3/5.
i hope this helps! :D
Will GIVE BRAINLIST!
This table of values represents a linear function.
Enter the rate of change of this function.
Help I will give brainiest. you don't have to explain
Answer:
1. No solutions
2. Yes, if Jane buys 3 shirts and yuki buys 4
4. No solutions
5. One, x=6
6. 1-x will be different from 5(x-4) - 6x regardless of the value of x because 5x - 6x is infinitely equal to 1-x but then you will always have to subtract 20, making them infinitely different.
Step-by-step explanation:
THE FIRSTT
ONE Plsss someone help me
Determine the value of y in the figure below.
A triangle has sides of (2x), (x - 7) and (3x - 20).
(x - 7)
2x
(3x - 20)
(a)
Find an expression, in terms of x, for the perimeter of the triangle.
Give your answer in its simplest form.
The perimeter of the triangle is 87cm.
Work out the value of x.
(b)
Express the lcm of 50,18 and 32 in prime factors
Answer:
The least common multiple of 50, 18 and 32 is 7200.
Step-by-step explanation:
mark brainleist plz
Answer:
LCM = 7200
Step-by-step explanation:
LCM(18, 32, 50) =
LCM(LCM(18, 32), 50)
Working from the innermost parentheses outward:
LCM(18,32) = (18 × 32) / GCF(18,32)
= (18 × 32) / 2
= 576 / 2
= 288
LCM(288,50) = (288 × 50) / GCF(288,50)
= (288 × 50) / 2
= 14400 / 2
= 7200
Therefore,
LCM(18, 32, 50) = 7200
Item 2
Which statements about liquid volume are true?
Select each correct answer.
One milliliter is 100 times smaller than one liter.
Liters are smaller units than milliliters.
Milliliters are smaller units than liters.
One liter is 1,000 times larger than one milliliter.
One milliliter is 100 times larger than one liter.
One liter is 1,000 times smaller than one milliliter.
Answer:
C, D
Step-by-step explanation:
These are the only correct statements about liquid volume. 1L= 1,000mL
A Liter is larger than a mL, a thousand times so.
A mL is smaller than a Liter, a thousand times so.
The correct statements about liquid volume are:
1. One milliliter is 100 times smaller than one liter.
2. Milliliters are smaller units than liters.
3. One liter is 1,000 times larger than one milliliter.
1. One milliliter is 100 times smaller than one liter:
This statement is true.
Since there are 1,000 milliliters in one liter, dividing one liter by 1,000 gives us the equivalent value of one milliliter.
2. Milliliters are a smaller unit of measure compared to liters. There are 1,000 milliliters in one liter, so any given volume in milliliters will be a fraction of the equivalent volume in liters.
3. As mentioned earlier, there are 1,000 milliliters in one liter.
Therefore, one liter is 1,000 times larger than one milliliter.
4. Liters are larger units of measure compared to milliliters.
5. As explained earlier, one milliliter is 100 times smaller than one liter.
Learn more about Unit Conversion here:
https://brainly.com/question/31054078
#SPJ6
There are 83 Grade 7 students in Queenston Junior High School. The number of boys is 31 less than 2 times the number of girls. How many boys and girls are there?
Answer:5
Step-by-step explanation:6×6
Determine the value of the variable that makes the equation true. 12-b=12.5
Answer:
B = -.5
Step-by-step explanation:
If B is negative is cancels out the prexisting negative making it positive.
Find the cubes of the following numbers: a) 21 b) 55 c) 302
Answer:
a)9261
b)166375
c)27543608
Step-by-step explanation:
21 x 21 x 21 = 9261
55 x 55 x 55 = 166375
302 x 302 x 302 = 27543608
what is the measure of angle one
Pls someone help me with thissss plsss
Answer:
y = 5x -3
Step-by-step explanation:
slope = 5
y int = -3
Find the circumference of the object. Use $3.14$ or $\frac{22}{7}$ for $\pi$ . Round to the nearest hundredth if necessary.
Answer:
18.84 units
Step-by-step explanation:
The question is incomplete, however, we can proceed with the given information
Given data
The expression for the circumference of a circle is given as
C= 2πr
Hence when we have a value for the radius say r= 3
Hence the circumference can be found as
C= 2*3.14*3
C= 18.84 units
a point in rectangular coordinates is given. Convert the point to polar coordinates. Round your answers to two decimal places.
(5,7)
Answer:
(√74, 54.46°)
Step-by-step explanation:
The rectangular coordinate point is given as; (5, 7)
Now, converting rectangular coordinates to polar coordinates is done by;
(r, θ)
Where, r is the magnitude while θ is the angle
r = √(5² + 7²)
r = √74
tan θ = (7/5)
θ = tan^(-1) 1.4
θ = 54.46°
Thus,polar coordinate is; (√74, 54.46°)