Answer: $9.75.
Step-by-step explanation:
Given: Cost per stamp = 39 cents
since 1 dollar = 100 cent , so 1 cent = 0.01 dollar
So, Cost per stamp = $0.39
Total stamps = 25
Cost of 25 stamps = (Cost per stamp) x (Cost per stamp)
=$0.39 x 25
= $9.75
Hence, the price for the sheet of stamps = $9.75.
A science teacher ordered S2278 worth of microscopes and dissection kits for the new science lab. A total of
26 microscopes and 56 dissection kits were ordered. A microscope costs three times as much as a dissection
kit. Write a system of linear equations that represents this situation. What is the cost of each item?
Answer:
[tex]26M + 56D = 2278[/tex] ---- equation 1
[tex]M = 3D[/tex] ---- equation 2
A microscope costs S51 and a dissection kit costs S17
Step-by-step explanation:
Given
Represent microscope with M and Dissection kits with D
Cost:
[tex]M = 3D[/tex]
[tex]Total = 2278[/tex]
Required
Represent as an equation:
To do this, we represent the equation in terms of cost and quantity
In terms of cost, we have:
[tex]26M + 56D = 2278[/tex] ---- equation 1
and
[tex]M = 3D[/tex] ---- equation 2
Substitute 3D for M in equation 1
[tex]26*3D + 56D = 2278[/tex]
[tex]78D + 56D = 2278[/tex]
[tex]134D = 2278[/tex]
Divide both sides by 134
[tex]D = \frac{2278}{134}[/tex]
[tex]D = 17[/tex]
Substitute 17 for D in [tex]M = 3D[/tex]
[tex]M = 3 * 17[/tex]
[tex]M = 51[/tex]
Hence:
A microscope costs S51 and a dissection kit costs S17
PLEASEEEE 10 points
Answer
7?
Step-by-step explanation:
It also detects if you are right or wrong
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According to the table ;
[tex]f(0) = 6[/tex]
Let's check that in which of the equations it happens.
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
A )
[tex]y = f(x) = 6x + 4[/tex]
[tex]f(0) = 6(0) + 4[/tex]
[tex]f(0) = 0 + 4[/tex]
[tex]f(0) = 4[/tex]
Wrong
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
B )
[tex]y = f(x) = 4x + 6[/tex]
[tex]f(0) = 4(0) + 6[/tex]
[tex]f(0) = 0 + 6[/tex]
[tex]f(0) = 6[/tex]
Correct.
Thus this option is the correct answer.
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
C )
[tex]y = f(x) = 2x + 4[/tex]
[tex]f(0) = 2(0) + 4[/tex]
[tex]f(0) = 0 + 4[/tex]
[tex]f(0) = 4[/tex]
Wrong
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Determine whether the given equation has one solution, no solution, or infinitely many solutions.
2 - 3(x + 4) = 3(3 - x)
cannot be determined
one solution
no solution
infinitely many solutions
Answer:
one solution is your answer to the question
Answer:
Perform the indicated multiplication: 2 - 3x - 12 = 9 - 3x
Gather all the x terms on one side and all the constants on the other:
-3x + 3x = 9 + 12 - 2, or 0 = 19
since this is never true, 2 - 3x - 12 = 9 - 3x has no solution.
You move right seven units. You end at 2,2. Where did you start?
Answer:
(2-7,2) = (-5,2)
Step-by-step explanation:
A cookie factory uses 1/6 of a bag of flour in each batch of cookies the factory used 1/2 of a bag of flour yesterday how many batches of cookies did the factory make
Answer:
they made 3 batchs
Step-by-step explanation:
The toy rocket is how much inches long?
The temperature one cold morning is -5 °C. By noon, the temperature had increased by 3 degrees and at 4 PM the temperature was zero. The increase from noon to 4 PM was
Answer:
2°C
Step-by-step explanation:
Morning
-5°C
Noon (+3)
-2°C
4pm (+?)
0°C
Equation I used:
(-5) + (3) + x = 0
I'm assuming you're being taught how to work with negative intervals in algebra? Don't worry, that's why you're practising with temperature. Instead of asking online, try using the progress your teacher taught you. If you have notes, look back at them. Practise makes perfect :)
how do i find my sister's math question she just posted how do i find it
Answer:
You can find it on her profile, in the questions section.
Step-by-step explanation:
Tap her profile picture, which will take you to her profile.
Tap the questions bar, which should lead you to all questions she has posted.
Lastly, tap the question you want! It should show you the date or time it was posted.
A brainiest is this doggo's bone!
discriminate of 2x2 – 9x + 2 = –1
Answer:
The discriminant is less than 0, so there are two complex roots.
Step-by-step explanation: i think
Brennan studies the relationship shown in the table. Which expression describes a method Brennan could use to determine the y-value when x equals 7?
Answer:
What is the long Division rhyme to help you solve?
What is the long Division rhyme to help you solve?
Step-by-step explanation:
The price for gasoline is represented by the equation y = 3.69x, where 'y' represents the total price for 'x' gallons of gasoline. On a graph, the number of gallons is represented by the horizontal axis, and the total price is represented on the vertical axis. Determine whether each statement describes the graph of the equation. Select True or False for the following statement. The graph of the lines goes through the points (7.38, 2) and (11.07, 3).
Answer:true
Step-by-step explanation:
2x+7=3x+4
step by step
Answer:
3=x or x=3
Step-by-step explanation:
2x+7=3x+4
-2x+2x7=-2x+3x+4
7=x+4
7-4=x+4-4
3=x or x=3
I WILL MAKE YOU BRAINIELIST.
what is 37829192976277×2283838328282
Answer:
8.6395761e+25
Step-by-step explanation:
no
Describe a strategy for finding the difference of two temperatures/Answer in complete sentences.
Hello this is my question if you answer correctly you will receive 30 points plus branliest please be mindful and help me solve this question ASP
Answer:
Use google scooby it's easier than this way.
Step-by-step explanation:
WILL MARK BRAINLIEST PLEASE HELP
6th grade math
34/51 = x/3
solve pls
What is the value of x in the equation One-third x minus two-thirds = negative 18? –56 –52 52 56 Need answer ASAP!!!! Being Timed
Answer:
Step-by-step explanation:
fhv
Roll a number cube. If the number cube comes up odd, you win the same number of points as the
number on the cube. If the number comes up even, you lose 4 points.
What is the expected number of points per roll?
-0.25
-0.5
0
Oo oo
0.25
0.5
Answer:
-0.5
Step-by-step explanation:
Bob baked 175 brownies to give seven of his friends if he splits the brownies evenly and keeps none for himself how many brownies will each friend get
Answer:
25
Step-by-step explanation:
175 ÷ 7 = 25
What si the answer of Y = 7x -3 for x
Help
Answer:
[tex]x=\frac{1}{7}y+\frac{3}{7}[/tex]
Step-by-step explanation:
[tex]y=7x-3[/tex]
[tex]7x-3=y[/tex]
[tex]7x-3+3=y+3[/tex]
[tex]\frac{7x}{7}= \frac{y+3}{7}[/tex]
[tex]x=\frac{1}{4}y+\frac{3}{7}[/tex]
help me please i have 2 more after this
Answer:
poop
Step-by-step explanation:
asdasdasd
Answer:
114
Step-by-step explanation:
corresponding angles
congruent
work out the equation of a line which has a gradient of -2 and passes through the point (1 ,7)
Answer:
Y=-2x+9
Step-by-step explanation:
The first thing is to know the formula which is Y÷x
Then... The line (1,7)use the coordinates Y and X so it will be as follows... Label 1 and 7 as x, y
So it will be Y-7÷X-1 = the gradient which is - 2
So multiply both sides by X-1
So it will be Y-7=2x+2 again be careful because a negative number multiplied by another negative will give you a positive sign
Remember Y-7....... Take 7 to the other side so it will be a positive...... Then work out the integers
Which could be the first step in solving the equation represented by the model below?
A. Add 4 negative unit tiles to both sides.
B. Add 4 negative unit tiles to the left side, and add 6 negative unit tiles to the right side.
C. Add 4 positive unit tiles to both sides.
D. Add 6 negative unit tiles to the left side, and add 4 negative unit tiles to the right side.
Answer: A. Add 4 negative unit tiles to both sides.
Step-by-step explanation: Hope this helps
Please help. Questions in the picture.
Answer:
Step-by-step explanation:
(2 , 0) ; (0, 1)
Slope = [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\[/tex]
[tex]= \frac{1-0}{0-2}\\\\=\frac{1}{-2}\\\\\\=\frac{-1}{2}[/tex]
m = -1/2 ; (2 , 0)
Equation of the line : y - y1 = m(x - x1)
[tex]y - 0 = \frac{-1}{2}(x-2)\\\\ y = \frac{-1}{2}x - 2*\frac{-1}{2}\\\\\\ y = \frac{-1}{2}x+1[/tex]
slope = (-1/2)
y - intercept = 1
10³ ÷ (25×4) = Please
Answer:
10
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
10³ ÷ (25×4)
1000 ÷ 100 = 10
What is the order fractions least to greatest 3/5 1/4 1/2 2/5
Answer:
1/4, 2/5, 1/2, 3/5
Step-by-step explanation:
1/4=0.25
3/5=0.6
2/5=0.4
1/2=0.5
Answer:
[least] 1/4, 2/5 , 1/2, 3/5 [greatest]
Step-by-step explanation:
Well lets find out LCD (least common denominator) for 4,5 and 2
LCD-20
12/20 =used to be 3/5
5/20=used to be 1/4
10/20=used to be 1/2
8/20=used to be 2/5
Now that you know all of them and have common denominator lets order!!
[least] 1/4, 2/5 , 1/2, 3/5 [greatest]
Hope this helps :3
Find the length of the unknown side. Round your answer to the nearest whole number. (4 points)
Image of a right triangle with legs labeled 12 meters and 8 meters. Hypotenuse is
unknown.
13 meters
14 meters
200 meters
208 meters
Answer:
Your anwser is 14 hopw this helpss
Step-by-step explanation:
Answer:
14
Step-by-step explanation:
the answer is 14 i know this because the person before me said the same thing.
Choose the correct Triangle Congruence Theorem
Answer:
ASA
Step-by-step explanation:
Answer:
AAS
Step-by-step explanation:
The triangles have two congruent angles and one congruent side. This means they are congruent through the AAS theorem. The reason it is not the ASA theorem is that the side is not included, which means it is not in-between the congruent angles.
Can someone please help? I will give Brainliest.
Answer:
Ask your mom and she might tell you
Step-by-step explanation:
Answer:
ye
Step-by-step explanation: