Answers
Answer:
x= 0
y= -3
Step-by-step explanation:
6x-5y=15
substitution...
6(y+3)-5y=15
6y+18-5y=15
y+18=15
-18 -18
y= -3
substitution again...
6x-5(-3)=15
6x+15=15
-15 -15
6x=0
/6 /6
x= 0
Answer:
(0, -3)
x = 0
y = -3
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASEquality PropertiesAlgebra I
Solving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define systems
6x - 5y = 15
x = y + 3
Step 2: Solve for y
Substitution
Substitute in x: 6(y + 3) - 5y = 15Distribute 6: 6y + 18 - 5y = 15Combine like terms: y + 18 = 15Isolate y: y = -3Step 3: Solve for x
Define original equation: x = y + 3Substitute in y: x = -3 + 3Add: x = 0Related Questions
Find the value of x (Round to the nearest tenth) **Hint: Find the length
of the dotted line first***
Helppp!!!!!!!
Answers
Answer:
Length equal 12
Step-by-step explanation:
16^2+b^2=20^2
256+b^2=400 (subtract 256 on both sides)
b^2=144 (square root)
b=12
8900945867-*+.23598.000562-45896.0265=986578587983+89744563212255685-.032658974633what is the quotients!! s+89.222550y+-x=-.3265
Answers
Answer:
21
Step-by-step explanation:
On Monday, Byron spent $8.00 on lunch to purchase two tacos and one burrito. On Wednesday, he purchased one enchilada, one taco, and one burrito and spent $8.50. On Friday, it cost Byron $10.00 for two enchiladas and two tacos. If t represents the cost of a taco, b represents the cost of a burrito, and e represents the cost of an enchilada, which system of equations can be used to find the cost of each?
Answers
Answer:
2t+b=8
e+t+b=8.5
2e+2t=10
Graph the line with the equation y=-1/2x+1
Answers
Step-by-step explanation:
it depends how far you want to take the equation
Please help! Will mark brainliest!
Answers
It took the Hendersons 6 1/4 hours to
travel 325 miles.
At this rate, how many miles could they
travel in one hour?
Answers
Answer:
52 miles
Step-by-step explanation:
They drive 325 miles in 6 1/4 hours. Convert 6 1/4 to 6.25 and divide. 325/6.25= 52 mph
There are 75 new houses being built in a neighborhood. Last month, 2/5 of them were sold. This month, 3/5 of the remaining houses were sold. How many houses are left to be sold?
Answers
Step-by-step explanation:
75 * (1-2/5) * (1-3/5) = 18.
How much are these coins worth?
Answers
Answer:
$1.97
Step-by-step explanation:
Please help I’ll mark you brainlist
Answers
Answer:
∠ MDF = 39°
Step-by-step explanation:
∠ MDH = 90°, so
∠ MDF + ∠ FDH = 90 , substitute values
2r + 59 + 6r + 111 = 90 , that is
8r + 170 = 90 ( subtract 170 from both sides )
8r = - 80 ( divide both sides by 8 )
r = - 10
Thus
∠ MDF = 2r + 59 = 2(- 10) + 59 = - 20 + 59 = 39°
M (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. Switch the x- and y-coordinates: (6, –3) 2. Multiply the new x-coordinate by –1: (6(–1), –3) 3. Simplify: (–6, –3) Mary Beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. Examine the steps to determine whether she made an error. The student made .
Answers
Answer:
The answer is below
Step-by-step explanation:
Transformation is the movement of a point from its initial location to a new location. Types of transformation is rotation, reflection, translation and dilation.
If a point (x, y) is rotated 90° counterclockwise, its new coordinate is (–y, x).
Give point M (3, –6) is rotated 90° counterclockwise:
Step 1: Interchange the x- and y-coordinates to get (-6, 3)
Step 2: Multiply the new x-coordinate by –1 to get (-6(–1), 3)
Step 3: Simplify to get (6, 3)
Therefore she made an error in step 1
Answer: An error in step one
Step-by-step explanation:
A new cell phone costs $625. Its sale price is $500. What's the percent of decrease?
Answers
Answer:
20 percent
Step-by-step explanation:
I need points!!!
500/625 = the percent of original
100 - percent of original = answer
Suppose you have a dog-walking business after school for which you charge each customer $3 per hour plus an additional $10. What equation could be written to show this relationship?
Answers
PLEASE Help ASAaP will give brainlist
Answers
Please help on these
Answers
Answer:
x should be 11
Step-by-step explanation:
What we know:
The angles shown are 13x + 12, and 2x + 3
The two angles are complementary, which means they equal 180 degrees.
(13x + 12) + (2x + 3) = 180
15x + 15 = 180
15x = 180 - 15
15x = 165
x = 11
What algebraic expression will I put for the drawing above?
Answers
Explain what the slope of each line below represents. Then find the slope and give its units
Answers
Answer:
The slope represents the rate of change of water volume stored in a storage tank.
The slope here is -900 in units of gallons per month. (gal/mos)
Step-by-step explanation:
The slope is rise over run, going from left to right.
Looking at the difference in time then, it is a period of ten months, and the volume difference is -9000 gallons.
The slope then is -9000 gallons divided by 10 months, which is -900 gallons per month
John has seven hamburgers, which he divides evenly among his three friends. Which point on the number line below represents the number of hamburgers that each friend receives
Answers
A top swimmer would be able to swim across a 25-meter pool in about 15 of a minute. How fast can a top swimmer go?
Answers
Answer:
1.66 or 1 and 2/3 fast
Step-by-step explanation:
Answer:
ಠ ,,ಠ
____
Step-by-step explanation:
because earth is round the amount of time it takes to eat a tortilla chip is honey bunches of oats.
Derek needs 2 gallons water to mix a sport drink , but he only has a 1 cup measuring cup.
Answers
Answer:
He can fill up his fill up his measuring cup 8 times that is pretty simple
Step-by-step example
4 cups is in one gallon
please help!! I NEED IT VERY BADLY
Answers
Answer:
3/4
Step-by-step explanation:
tan A =opposite/adjacent = 6/8 =3/4
Hope this helps
Have a good day
please help!! question in picture
Answers
can someone please help me with this it’s due soon please
Answers
Answer: 5 inches
Step-by-step explanation:
Perpendicular bisectors must be split directly in half, as they are *bi*sectors, meaning "*two* sections"
Perpendicular means when two angles come together to create a 90° angle
This means that angle BDA is also a 90 degree angle
Since line AC is the line segment split by the perpendicular line segment BD, then you can assume that it is the only 8 inch line, according to multiple laws of geometry. This indicates that segment BC and segment BA must be congruent.
Dec 18, 11:45:23 AM
Angle A and Angle Bare complementary angles. If m angle A = (4x – 28)° and m
Angle B= (x - 2)°, then find the measure of angle A.
Submit Answer
Answer:
Answers
Answer: 68*
Step-by-step explanation: In pic
Please help me find tge answer soon thxs
Answers
Answer:
acute
Step-by-step explanation:
It measures less than 90 degrees
Answer:
Acute angle
Step-by-step explanation:
(less than 90°)
I need help with my homework this is hard pls help thx!
z=m-x solve for x
Answers
Answer:
x = m - z
Step-by-step explanation:
z = m - x add x to both sides
z + x = m - x + x
z + x = m subtract z from both sides
z - z + x = m - z
x = m - z
Answer:
-z + m = x
Step-by-step explanation:
z = m-x
subtract the m from both sides
z-m = -x
you can't have a negative x so multiply everything by -1
-1(z-m = -x)
-z + m = x
SOMEONE HELP!!!! Garrett must inspect a bridge that goes over a river. He begins 18 feet above water level to inspect the lighting, descends 32 feet to inspect the base of the bridge underwater, then descends another 4 feet to check on the concrete anchoring the base. Which best represents Garrett’s position with respect to the water level?
–54 feet
–30 feet
–18 feet
–10 feet
Answers
Answer:
-18 feet
Step-by-step explanation:
18-32-4
18-36= -18
Answer:
–18 feet
Step-by-step explanation:
Given: Garrett begins 18 feet above water level to inspect the lighting, descends 32 feet to inspect the base of the bridge underwater, then descends another 4 feet to check on the concrete anchoring the base.
write the equation of the horizontal line that goes through (-5,7)
Answers
Answer:
The equation would be y=7
There is a leaky faucet in a bathroom, and Joey places a bucket underneath the faucet. After 2/3 of an hour, 1/8 cup of water has been collected in the bucket. At what rate, in cups per hour, is water leaking from the faucet?
A. 1/12
B. 3/16
C. 13/24
D. 19/24
—
please help-
Answers
Answer:c
Step-by-step explanation:
i think
Answer:
B
Step-by-step explanation:
You have to divide the fractions and make the answer a reciprocal.
Hope this helps!
How can you multiply positive and negative fractions?
Answers
Step-by-step explanation:
When you multiply a fraction by another fraction or a fraction by a whole number, the rules of fractions dictate the form of the answer. If at least one of the values is negative, you also use the rules for positive and negative signs to determine if the result is positive or negative.
Select the locations on the number line to plot the points 9/2 and −7/2.
Answers
Answer:To plot these points on the number line, you should label the long lines on the number line as such starting from the left (-5-already there, -4,-3,-2,-1,0,1,2,3,4,5-already there).
Now take each number and convert the improper fraction into a mixed number. 9/2 = 4 1/2 and -7/2 = -3 1/2.
4 1/2 would plotted on the line exactly in between the 4 and 5.
-3 1/2 would be plotted on the line exactly halfway between -3 and -4.
You will draw a dot to show each of these positions on a number line.
Step-by-step explanation:
hope it helps