Answer:
x=-2, y= 1
Step-by-step explanation:
Given data
-2x+3y= 7 --------------1
5x+8y= -2--------------2
Multiply 1 by 5 and 2 by 2 and add
-2x+3y= 7 X 5
5x+8y= -2 X 2
-10x+15y= 35
10x+16y= -4
0x+31y= 31
31y= 31
y= 31/31
y= 1
put y= 1 in eqn 1
-2x+3y= 7
-2x+3(1)= 7
-2x+3=7
-2x= 7-3
-2x= 4
x=- 4/2
x= -2
Jackie weeded the neighbors' gardens all summer. The 6 neighbors paid:
$4.00 $6.00 $6.00 $5.00$ 8.00 7.00
What was the mean amount paid?
Answer:
7.2
Step-by-step explanation:
(4+6+6+5+8+7)/6=
=7.2$
What’s the length of a segment whose endpoints are (8,-6) and (-4,2)?
Answer:
Step-by-step explanation:
Imagine or draw a triangle with horizontal leg length 8 - (-4), or 12, and vertical leg length |-6 - 2|, or 8. Use the Pythagorean Theorem to find the length of the hypotenuse:
length of hypotenuse = +√(8² + 12²) = √208 = 4√13 (Answer A)
4(x + 7)^2 – 49 = -13 solve the following quadratic equation for all values of x in the simplest form
Answer:
4(x²+14x+49)-49+13=0
4x²+56x+196-49+13=0
4x²+56x+160=0
D=3136-2560=576
x1=-56+24/8=-4
x2=-56-24/16=-10
I NEED HELP ASAP I WILL GIVE 15 POINTS
Answer:
G) 49.5 mph
Step-by-step explanation:
d = rt
24.75 = 0.5r
r = 24.75/0.5
r = 49.5
I need the answer to this
Answer:
1
Step-by-step explanation:
12/4 + 2 * 1/2 - 3 = 1
can someone plz plz plz help me?????
a) x+1+x+1+x+1+x+1=56 x=6.5
b) 2(6.5)+1=14cm
I need help with this
Answer:
D let me know if you need explanation
Step-by-step explanation:
D
Step-by-step explanation:
the slope for the main equation is 2
to get the perpendicular equation
slope=-1/m
so slope=-1/2
when you break the slope at equation D
you will get -1/2
Find the volume of the figure. Round to the nearest tenth if necessary.
1 point
3.4 in
4.8 in
25
Answer: 34 in^3
Step-by-step explanation:
Surface area of triangle = 1/2 x 3.4 x 2.5 = 4.25
To find the volume of the prism, multiply the surface area of the triangle by length.
So 4.25 x 8 = 34 in^3
What are the measurements of each angle?
Answer:
2. 70
3. 70
4. 110
5. 110
6.70
7. 70
8. 110
Step-by-step explanation:
a straight line = 180 so 1+2 has to = 180 1+3 has to = 180 2+4 has to = 180 and so on
Tom made $273 for 13 hours of work.
At the same rate, how many hours would he have to work to make $105?
Answer:
5 hours
Step-by-step explanation:
$272 = 13h
/273 /273
$1= 0.4.......
*105 *105
105= 5
Answer:
5
Step-by-step explanation:
Lucy loves to wear gloves. She has four red gloves and two blue gloves in her drawer. They are not separated into pairs. One dark morning, she pulls out two gloves to wear to school. She puts on the gloves.
A. Blue Gloves
B. Red gloves
C. Matching gloves
Which one
John attempted 56 free throws during the basketball season he mad 5/7 of them. How many free throws did he make?
Answer:
40
Step-by-step explanation:
5/7 divided by 56
Answer:
He made 40 shots and 16 shots were missed
Step-by-step explanation:
If a linear function has a slope of 3 and a y- intercept of -6 what is the equation of the graph of the function in slope - intercept form
Answer:
y=3x-6
Step-by-step explanation:
formula for alope intercept for is
y=mx+b
m is slope
b is y-intercept
this is fairly easy yet i cannot do this
Answer:
( -9, -6)
Step-by-step explanation:
The red dot is the original (6, 9)
The blue dot is when it is rotated 270 degrees clockwise (-9, -6).
Solve using the quadratic equation.
[tex]3x^{2} -6x-24[/tex]
Solution 1: ___
Solution 2: ___
Answer:
X = 4
X = -2
Step-by-step explanation:
Rate And Like. Salute.
GHJU is a rhombus. how could you prove that <3~=<2? this doesn’t have to be a formal proof, just a basic outline of an augment. how would you approach this proof?
Answer:
Angle 3 is equal to Angle 2 because when you have a rhombus, the diagonals will always bisect the angles.
Step-by-step explanation:
What is the measure of angle z in this picture?
Answer:
z = 137 degrees
Step-by-step explanation:
Angle 43 and angle z make a straight line, which is 180 degrees
43+z = 180
Subtract 43 from each side
43+z-43 = 180-43
z =137
If the mass of a 25 meter long wire is 5 kg then find its mass per
meter.
Answer:
0.2 kg per meter
Step-by-step explanation:
5÷25=0.2
What is an equation of the line that passes through the points (-1, 6) and
(-1, -5)?
Answer:
x = -1
Step-by-step explanation:
(-1 , 6) ; (-1 , -5)
There is no change in x-coordinate values.
So, the is parallel to y-axis
x = -1
Twenty years ago, Mr. Davis purchased his home for $160,000. Since then, the value of
the home has increased about 5% per year. How much is the home worth today?
Answer:
The home is worth $424,528 today
Step-by-step explanation:
To get the worth of the home today, we are going to use the exponential formula
We have this as follows;
A = P(1 + r)^t
where A is the value of the house after some time t
P is the initial value the home was worth which is $160,000
r is the rate of increase in the price of the home which is 5% = 5/100 = 0.05
t is the number of years which is 20
substituting these values;
A = 160,000(1 + 0.05)^20
A = $424,528
can someone help me figure out this please ASAP!!!!!
Answer:
Formula: SA= 2B+Ph
This might not be an exact answer but it makes it easier
Mr. drew rides his motorcycle with a constant speed of 72 mi/hr. How far can he travel in 2 ½ hours?
Answer:
180
Step-by-step explanation:
take 72+72 +36 to get your answer .
Answer:
180 miles
Step-by-step explanation:
Assuming that the speed of the motorcycle is constant, the following equation, ([tex]speed * time = distance[/tex]) can be used to find the distance that a vehicle traveled when one is given the time and speed at which the vehicle operates. Substitute in these values, and solve,
[tex](72)*(2\frac{1}{2})\\\\= 72 * \frac{5}{2}\\\\= 180[/tex]
A binder is 9 inches wide, 12 inches long and 1.5 inch thick. what is the volume of documents the binder can hold?
Answer:
162 square inches
Step-by-step explanation:
9*12*1.5
Answer:
162 cubic inches
Step-by-step explanation:
9 times 12 times 1.5
Find the volume of the irregular
figure.
1 cm
2 cm
3 cm
?
cm3
2 cm
1 cm
7 cm
Answer:
252 cm cubed
Step-by-step explanation:
29 cm 3
you multiply 1,2,3 and you get 6 !! and then you do 7,1,2, and you get 14 then you take 6 plus 14 = 20 !!
Chris types at an average speed of 50 words per minute. He has already typed 1,250 words of his final paper. The paper has to be
more than 3,750 words. Which of the following inequalities could be used to solve for x, the number of minutes it will take Chris to
type his paper?
OA. 50x > 3,750
ОВ.50x - 1,250 > 3,750
OC. 50x > 5,000
OD. 50x + 1,250 > 3,750
Answer:
D. 50x+1,250>3,750
Step-by-step explanation:
Solve for x for 180 ° < x < 270 ° . 1/sin^2 x=4
Im sped Help MEEEEE PLEASEEE
Answer:
2x^4
-x^3 + 3x^2 + 2x + 4
5x^2 + 5x + 5
-3x + 10
22
Step-by-step explanation:
find the highest exponent of each polynomials:
22=> 0 degree
-3x(equals to -3x^1) + 10=> 1st degree
5x^2 + 5x + 5=> 2nd degree
-x^3 + 3x^2 + 2x + 4=> 3rd degree
2x^4=> 4th degree
A triangle has three angles that measure 30 degrees, 70 degrees What is the value of x?
Answer:
x = 80
Step-by-step explanation:
Sum of all the angles of triangle = 180
30 + 70 + x = 180
100 + x = 180 {Subtract 100 from both sides}
x = 180 - 100
x = 80°
a drop in temperature of 9 degrees overnight
Quadrilateral PQRS was translated 5 units to the right and 3 units up to create quadrilateral P′Q′R′S′. Which rule describes this transformation? F.(x, y) → (x — 5, y — 3) G.(x, y) → (x + 5, y + 3) H.(x, y) → (x — 3, y — 5) J.(x, y) → (x + 3, y + 5)
Answer:
G.(x, y) → (x+5, y+3)
Step-by-step explanation:
The rule would be (x+5, y+3) and the only one with that rule is G.