Answer with step-by-step explanation:
First of all, we need to calculate how many times the 3 lamps flash in a minute. We can do this by finding their LCM (least common multiple), which is 360. 360 is equivalent to 6 minutes, so that is going to be our test time. Lamp a flashes every 20 seconds, so 360/20 = 18 flashes. Then, 360/45 = 8 flashes. Finally, 360/120 = 3 flashes. 18 + 8 + 3 = 29 flashes per 6 minutes. If so, we multiply 29 by 10, because 60 minutes per hour ÷ 6 minutes = 10. So 29 × 10 = 290 flashes per hour
Hope this helped! (brainliest please)
a) X + 3 = 11 b) m + 5 = -2. c) y – 3 = 9
d) T – 11= -5
Help please thank you please help
Answer:
x=8,m=-7,y=12,t=6
Step-by-step explanation:
for x you add three too bothe sides
for m you subtract 5 from both sides
for y you add three to both sides
for t you add ll too both sides
h-(-2.22)=-7.851 solve for h
Answer:
[tex]\boxed {h = -10.071}[/tex]
Step-by-step explanation:
Solve for the value of [tex]h[/tex]:
[tex]h - (-2.22) = -7.851[/tex]
The opposite of [tex]-2.22[/tex] would be [tex]2.22[/tex]:
[tex]h - (-2.22) = -7.851[/tex]
[tex]h + 2.22 = -7.851[/tex]
-Subtract both side by [tex]2.22[/tex]:
[tex]h + 2.22 - 2.22 = -7.851 - 2.22[/tex]
[tex]\boxed {h = -10.071}[/tex]
So, the value of [tex]h[/tex] is [tex]-10.071[/tex].
What value of n makes 4n +20 = 4? *
Step-by-step explanation:
Answer:-[tex]\sf{4n+20=4}[/tex]
[tex]\sf{4n=4-20}[/tex]
[tex]\sf{4n= -16}[/tex]
[tex]\sf{n=\dfrac{-16}{4}}[/tex]
[tex]\sf{n = -4}[/tex]
Hope it helps :)
Answer:
-4
Step-by-step explanation:
To solve, you need to isolate the number with the variable (in this case, 4n). To do that, get rid of the 20 on the left side. To do THAT, do the opposite which is subtract; do it to both sides. This leaves you with 4n= -16.
Now, to get rid of the 4 and be left with just the n, do the opposite of what is given. In this case, n is multiplied by 4 so divide by 4 on both sides to isolate n. This gives you the answer of -4.
Hope it helps!
At a store, the cost of 5 pounds of carrots is $3.35. Which statement about the cost per pound of carrots is true?
A. Subtract the total cost from the number of pounds to get $1.65 per pound.
B. Multiply the total cost by the number of pounds to get $16.75 per pound.
C. Divide the number of pounds by the total cost to get $1.49 per pound.
D. Divide the total cost by the number of pounds to get $0.67 per pound.
Answer: C
Step-by-step explanation:
I divide 5 by 3.35 and got 1.49
Answer:
C
Step-by-step explanation:
the answer is c bc if yu divide the number of pounds by the total cost
If I got a 60 on a test , and I have a 92 in that class , what will my grade be ? (please answer i am stressing so much I might get gray hairs)
Answer:
There's no way to answer this question 100% accurately, because we don't know your teacher's grading scale, or how much tests and quizzes are weighted for your grade in the class. That being said, one test shouldn't bring your grade down too much. As the year goes on, and more assignments are put in the gradebook, it will even out. If you get a 100 percent on 3 tests, and a 60 percent on one test, it evens out to a 90 percent.
If you need more help, type in "Rogerhub grade calculator." It's a website that is very helpful in calculating your grade for the year. Hope this helps! :)
do you know how fast last years winner was traveling, the catamaran in sydney?
Which ratio is different from the others? > 8 to 15 ,15:8 ,8:15 8/15
Which of the following linear equations is in standard form? A. 3x + 2y = 3 B. 2y = 3x - 2
C. y = 3x - 2 D. 3x + 2y - 2 = 0
Answer: A
Step-by-step explanation: The standard form for linear equations in two variables is Ax+By=C. For example, 2x+3y=5 is a linear equation in standard form. When an equation is given in this form, it's pretty easy to find both intercepts (x and y).
You are planning a road trip and you are preparing the songs you will be listening on the Road. You start by downloading 5 songs for $7.50 on one day and 8 songs for $12 the following day.
How much do 2 songs cost?
Answer:
$3.00
Step-by-step explanation:
7.50/5 = 1.5
12/8 = 1.5
Since each song costs $1.50 each, multiply the cost by the number of songs.
1.50(2) = 3
$3.00
Find the answer for x.
Answer:
x=25
Step-by-step explanation:
since this is a triangle you would add up all the measure of this and set it equal to 180. 90 is the side with the box. so it would be 2x+15+x+90=180 then solve for x and you would get your answer.
What is the prime factorization of 36?
22 × 9
2 × 32
22 × 32
3 × 13
Answer:
2 x 2 x 3 x 3
Step-by-step explanation:
Answer:
a composite number is written as a product of all of its prime factors, we have the prime factorization of the number. For example, the number 36 can be written as a product of primes as: 36 = 2² x 3². The expression 2² x 3² is said to be the prime factorization of 36.
Mrs Thomas walks3/4 of a mile every 1/3 of an hour.How far can she walk in an hour?
Answer:
2.25 miles
Step-by-step explanation:
If she can walk 3/4 of a mile in 20 minutes you need to multiply 3/4 by 3 because 20 times 3 is 60 and there is 60 minutes in a hour
How much money will Monique make if she works 10 hours this week as a lifeguard and also dog sits?
Answer: $140
Step-by-step explanation:
Answer:
140
Step-by-step explanation:
i did it before
Could someone help me here?
Answer:
c
Step-by-step explanation:
Conditional statement
Write the equation of a line ( slope intercept form y = mx + b)
Answer:
y=1/4x-1
Step-by-step explanation:
i knew the general equation of the line and i knew the slope would be a fraction because the line is rlly flat
-1 would be the b and i plugged in simple fraction values for m
i checked in desmos and they look similar
hope this helps and is correct <3
What is the slope of the line that passes through
the points (-1,3) and (5, 7)?
Answer:
[tex]\frac{2}{3}[/tex]
Step-by-step explanation:
For this situation we will use this equation:
[tex]m=\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
This lets us find the slope from a set of points (m being the slope of course), with each one representing a coordinate from our set. (e.g. 7 could be [tex]y_{2}[/tex])
First let's define which coordinates will represent each:
(-1,3): [tex]x_{1} ,y_{1}[/tex]
(5,7): [tex]x_{2} ,y_{2}[/tex]
Now that we have this, we can fill in our coordinates: [tex]m = \frac{7-3}{5-(-1)}[/tex]
Next we simplify: [tex]m = \frac{4}{5+1}[/tex] (double negative = positive)
And simplify some more: [tex]m = \frac{4}{6}[/tex]
Finally, we find the GCF (greatest common factor) of 4 and 6, which is 2, and divide by that to further simplify the fraction: [tex]m = \frac{2}{3}[/tex]
Therefore, the slope of the line that passes through the points (-1,3) and (5,7) is [tex]\frac{2}{3}[/tex].
The following are trinomial EXCEPT.
A. x+7 B. 5x²+2x-7
C. 7x³+2x+5 D. 7x⁴+3x-9
Answer:
A)
Step-by-step explanation:
Trinomial expression had 3 terms. Here x + 7 has only 2 terms. So, it is not a trinomial
Plz help with this question, I will mark you brainliest!
10.6
im assuming you dint need an explanation, just a quick answer. hmu if you do need one.
y=-3x+16 y=7 substitution method
PLEASE HELP
Given the line and a point on the line, what is the equation of the line in point-slope form?
A) y − (−1) = −3(x − 5)
B) y + (−1) = −3(x − 5)
C) y − (−1) = −3(x + 5)
D) y + (−1) = −3(x + 5)
If a rectangle is (x+2) wide and (x-7) in length, the area of the rectangle is?
Answer: x² - 5x - 14
Step-by-step explanation: Start with the formula for the area of a rectangle.
Area = length x width
To multiply these two binomials, let's use the F.O.I.L. method.
The product of the first terms is x².
The product of the outer terms is -7x.
The product of the inner terms is 2x.
The product of the last terms is -14.
So we have x² - 7x + 2x - 14 which simplifies to x² - 5x - 14.
can someone help me ? and can you also explain how u got the answer ?
Answer:
Step-by-step explanation:
How is 700,000,000 expressed in standard scientific notation?
Answer:
7 x 108
Step-by-step explanation:
8 a little sing on top of 0.
can I have brainliest
it was from Google
HELP ME PLEASEEEE, I need help check the picture and if its right i will mark brainliest
Answer:
x=2
Step-by-step explanation:
Answer:
the value for X is 2
Step-by-step explanation:
How can I split 166 in half
You divide 166 by 2. The answer would be 83.
The value of splitting 166 in half gives two equal halves of 83 each.
When 'split' a number in half, dividing the number into two equal parts.
Here want to split the number 166 in half.
Perform a division operation by dividing 166 by 2.
Division is the opposite operation of multiplication.
When divide a number by 2, you are essentially finding the value of half of that number.
So, the calculation is as follows:
166 ÷ 2 = 83
This means that half of 166 is 83.
Divide the number 166 into two equal parts, each being 83.
If add both halves together, you get the original number back:
83 + 83 = 166
Therefore, dividing 166 by 2 allows to splitting it equally into two halves, each having a value of 83.
learn more about splitting here
brainly.com/question/29183471
#SPJ2
Craig went to the video game store $100 he bought a video game system for $65 and then bought games for $5 each. What is the greatest number of games that Craig could have bought? I need an equation and the answer
Answer:
100=65+5x
-65 -65
35=5x
35/5 5/5
7=x
Step-by-step explanation:
ummmmmmmmm Store B
Store C
Store D
Jamal can buy from stores B, C, and D
To find out the total price from each store, you must multiply each price per pound by 3.25.
3.10 × 3.25 = 10.075 Wrong
3.02 × 3.25 = 9.815 Right
2.97 × 3.25 = 9.6525 Right
3.07 × 3.25 = 9.9775 Right
3.09 × 3.25 = 10.0425 Wrong
Answer: B, C, and D
Write an equation of the line that passes through the point (0,4) and (2,6) in slope-intercept form.
Answer:
y=x+4
Step-by-step explanation:
Use slope formula: (y2-y1)/(x2-x1)
(6-4)/(2-0)
2/2
1
Slope Intercept Form: y = m(slope) times x plus b(y-intercept)
y=1x+b
Plug in one of your points into the equation:
4=1(0)+b
4=0+b
4=b
Final Answer: y=x+4
Sorry if this is confusing; this is my first answer.
An alligator hatchling grew 272.5 inches after six years this length is 10 times it’s hatchling size if you want to know it’s hatchling size should you multiply or divide 72.5 by 10 explain
