Answer:
y = 4; x = 11/4
Step-by-step explanation:
4x - 5y = -9
-4x + y = -7
Add the two equations to eliminate x:
-4y = -16
-4y/-4 = -16/-4
y = 4
Plug in y for x
4x - 5y = -9
4x - 5(4) = -9
4x - 20 = -9
4x = -9 + 20
4x = 11
4x/4 = 11/4
x = 11/4
Answer from Gauthmath
Three times a number plus nine is five
*WRITE EACH PHRASE AS AN ALGEBRAIC EXPRESSION: CAN yall Please help
1. P multiplied by 4
2. A take away 16
3. 3 groups of 7
4. the sum of 1 and Q
Answer:
1. 4P
2. A - 16
3. 3 * 7
4. 1 + Q
Simplify the expression by combining like terms:
-3m-8(m+1)
Answer: -11m-8
Step-by-step explanation: first you would distribute (m+1) into -8 causing it to be -3m-8m-8 you then combine like terms getting you -11m-8
Answer:
16m
Step-by-step explanation:
-3m -8 (m+1) any variable has 1.
-8 (-2m)
16m
Glados drew a triangle with the base of 9.6 centimeters. It's area was 30.72 square centimeters. What was it's height (nearest tenth)
Answer:
the answer is 98.3cmsquared
Select the equivalent expression that shows the fewest possible terms.
Answer:
Step-by-step explanation:
7a-10c-2a-0.5c+5
5a-10.5c+5
it is your first choice
The hanger shown in the diagram is balanced. Both cherries weigh the same, both mushrooms
weigh the same, both carrots weigh the same, and all three strawberries weigh the same.
How many grams does the exotic fruit weigh if the total weight of all ten items is 84 grams?
Answer:
The mass of the exotic fruit is 20 grams.
Step-by-step explanation:
For the system to be in equilibrium,
i. the resultant of all masses must be zero
ii. the total mass on the left of the hanger must be equal to that on the right
Thus,
84 g = 42 g + 42 g
mass of each carrot = 12 g
mass of each mushroom = 10 g
mass of each cherry = 2.5 g
mass of each strawberry = 5 g
So that;
On the left of the hanger,
(2 x 5) + (2 x 10) + 12 = 42
10 + 20 + 12 = 42
42 = 42
On the right of the hanger, let the mass of exotic fruit be represented by x.
x + 12 + 5 + (2 x 2.5) = 42
x + 12 + 5 + 5 = 42
x + 22 = 42
x = 20 g
The mass of the exotic fruit is 20 grams.
The gross income, in dollars, that a company makes from
selling x items can be modeled by the expression 3x2 + 2x
+ 4. It costs the company x2 - 3x + 2 dollars to make x
items. Which expression represents the company's profit if
it makes and sells x items?
Answer:
x sells x
Step-by-step explanation:
$$$$$$$
Alex and 4 friends are playing baseball on the same team. Each time they play a game, they switch the batting order to a sequence that has not yet been used. What is the maximum number of games they can play before they have to repeat a batting order they have already used?
Answer:
120.
Step-by-step explanation:
Since Alex and 4 friends are playing baseball on the same team, and each time they play a game, they switch the batting order to a sequence that has not yet been used, to determine what is the maximum number of games they can play before they have to repeat a batting order they have already used, the following calculation must be performed:
1 x 2 x 3 x 4 x 5 = X
2 x 3 x 4 x 5 = X
6 x 4 x 5 = X
24 x 5 = X
120 = X
Thus, the maximum number of games they can play before they have to repeat a batting order they have already used is 120.
what do you understand by resultant of a force
Answer:
When a system of forces is acting on an object, the difference between the forces is called the Resultant force. For example, a 3N force to the left and 10N force to the right gives a resultant force of 7N to the right.
Step-by-step explanation:
Jim has 1/3 of a cup of milk he adds 2/3 to it. How much milk does the cup have know.
Answer:
3/3 (1)
Step-by-step explanation:
1/3 plus 2/3 is 3/3.
Since the denominators are the same, you just keep the number the same and add the numerators (top numbers)
WILL MARK BRAINLIEST! Solve for x and each angles measure. Only asking for #5. Thank you!
Answer:
Step-by-step explanation:
2x + 3x + 135 = 180 Every triangle has 180 degrees
5x + 135 = 180 Subtract 135 from both sides.
5x = 45 Divide by 5
x = 9
2x = 18
3x = 27
Other angle 135
Total 280
pleaseeee help please
Answer: It will be 60m^2
(1 + )1⁄3 + (1 − )1⁄3 = 21⁄3
Corrine earned $67.25 waiting tables, plus another $45.45 in tips. How much did she earn altogether?
Answer:
$112.70
Step-by-step explanation:
$67.25 + $45.45 = $112.70
Find the value of y if the mean is 22 and 18 ( 2y+1), 10 and 20 is 15
Answer:
2
Step-by-step explanation:
Mean = sum of data/sample size
Sum of data = 22 + 18 + 2y+1 + 10 + 20
Sample size = 5
Mean = 15
Substitute
15 = 22 + 18 + 2y+1 + 10 + 20/5
15*5 = 22 + 18 + 2y+1 + 10 + 20
75 = 70+2y+1
2y = 75-71
2y = 4
y = 4/2
y = 2
Hence the value of y is 2
what is dangerous about living for seven days on just one can of sardines?
Answer:
because you cant survive without enough food.
Step-by-step explanation:
John was having a party he knows his bowl can hold 2/3 of a bag of Doritos.if he has 4 bags or Doritos how many bowls does he need
Step-by-step explanation:
2•4 =8
8/3 =2 2/3
answer : 3
a small business estimates that the value V(t) of a copy machine is decreasing according to the function
V(t)=4000(4)^0.13t
where t is the number of year's that have elapsed since the machine was purchased and V(t) is in dollars.
Answer:
ZujADADA
Step-by-step explanation: 1+2=3
write the sum using summation notation -1+2+5+8+...+44
Answer:
[tex]\sum_{i=0}^{15} (3i-1)[/tex]
Step-by-step explanation:
for i=0 you have the first term, 3*0-1 = -1
for i=1 you have the second term, 3*1-1 = 2
...
for i=15 you have the last term, 3*15-1 = 44
10 cm
a
6 cm
What is the length of the missing leg?
a =
centimeters
Answer:
10×6
= 60
Step-by-step explanation:
maaf kalau salah
2. Mang Danny bought a cellphone worth Php 7500 and he's selling it for Php 9000. How much is the markup?
3. If the price of an item is 80 pesos and its markup rate is 30%, how much is the markup?
Answer:
php 1500
24 pesos
Step-by-step explanation:
Purchase price = 7500
Amount sold = 9000
The markup will be :
Amount sold - purchase price
9000 - 7500
= php 1500
2.)
Price = 80 pesos
Markup rate % = 30
The Markup = 30% * 80
Markup = 0.3 * 80
Markup = 24 pesos
Write 2 1/6 as an improper fraction
Answer:
13/6
Step-by-step explanation:
Which number is not a factor of 42?
2 3. 4 7
Answer:
3
by using divisibility test
Answer: Its 3
Step-by-step explanation: This is because 42 can be divided by 2 4 and 7 and still be a whole number but when you divide 3 by 42 you get 10.5
Hope this helps and have a nice day
Mia buys 4 ¼ pounds of plums. Her total cost after using a coupon for 55 cents off her entire purchase was $3.23. Write an equation to represent this situation.
Try to answer these
What is the total?
What will make the total - in words (be precise)
Write the words out as an equation
What don’t you know?
Write the algebraic equation.
Answer: I tried to help but i just got confused
Sorrry I didnt know the answer
Find the area of this circle. Use 3 for pi
Answer:
area = 108 cm^2
Step-by-step explanation:
area = Pi(r^2)
using Pi = 3
r = D/2 = 12/2 = 6
area = 3(6^2) = 3(36) = 108 cm^2
The volume of a right rectangular prism can be found by using the product 9(4)(1.1). Which expression could also be used to determine the volume of this prism?
O 11(9)(4)
O 9(4) + 1
0 32(11)
O 9 + 4 + 11
plss help fast
Answer:The answer is A)11(9)(4)
Step-by-step explanation:
If you have 9(4)(11) then is would be the one that look just like it but the number are moved like 11(9)(4)
Answer:
The Answer is 11 (9 + 4)
what if 1/3 years = -------- month
Answer: 1/3 of a year equals 4 months
Step-by-step explanation: This is because there are 12 months in a year and 1/3 years is 12/3, which is 4
Hope you are having a nice day and please tell me If got anything wrong
Answer: 4 months
Step-by-step explanation:I believe it would be four months because 12 months in a year divided by 1/3 would be 4 months. Hope this helps!
Could somebody help me with this please
Answer:
x = 19°
Step-by-step explanation:
.........................
Forgive me if wrong
DO THIS FOR BRAINLIEST PLEASE
Joey wants to find out what sport 7th grade girls like the most. He asks "Is basketball your favorite sport?"
This question is biased.
True OR False
Answer:
True
Step-by-step explanation:
I hope I'm right
Answer:
False
Step-by-step explanation:
No 7th grade girl likes basketball the most unless they're going through their tomboy phase of life.
find the value of s in rectangle
Answer:
s + 1 = 2s
s = 1