Answer:
5
Step-by-step explanation:
this can be solved using simultaneous equation
2a + 3b = 19 equation 1
1a + 4b = 17 equation 2
Multiply equation 2 by 2
2a + 8b = 34 equation 3
Subtract equation 1 from 3
5b = 15
b = 3
Substitute for b in equation 1
2a + 3(3) = 19
2a = 9 = 19
2a = 10
a = 5
Answer:
Step-by-step explanation:
2a + 3b = 19 equation 1
1a + 4b = 17 equation 2
Multiply equation 2 by 2
2a + 8b = 34 equation 3
Subtract equation 1 from 3
5b = 15
b = 3
Substitute for b in equation 1
2a + 3(3) = 19
2a = 9 = 19
2a = 10
a = 5
Which statement correctly compares the parking rates for each lot?
O Lot A costs $4.20 less per hour than Lot B.
O Lot A costs $0.10 more per hour than Lot B.
O Lot B costs $0.05 less per hour than Lot A.
O Lot B costs $0.01 more per hour than Lot A.
Answer: O Lot B costs $0.01 more
Step-by-step explanation: I think it’s O Lot B costs $0.01 more per hour than Lot A
A balloon with a small leak loses 0.5% of its volume each day. If it originally contained 40 liters of gas, what is the volume of the gas after one week?
AO 40 - 406.005)
B.O 406.05)'
C.O 400.95)
DO 406.995)'
An art dealer makes 17.5% commission on every painting sold. If a painting sold for $1,500, what was the commission?
Answer:
262.5 dollars
Step-by-step explanation:
17.5% of 1500 is 262.5
Answer:
262.50
Step-by-step explanation:
change 17.5% into 0.175 then multiply it by 1,500
Data collected in a mall recorded the shoe color worn by 30 customers. Based on this information, if there are 360 customers in the mall, how many customers would you expect to have a black shoe?
Answer:
200 people
Step-by-step explanation:
I did the math on my calculator
What is the answer to question b and d
Answer:
Step-by-step explanation:
a) -3
b) 5
c) -2
d) -6
Answer:
a) (-3)
b) 5
c) (-2)
d) (-6)
Hope it helps!!
what is the value of x? 26 degrees tangent lines
Answer:
154°Step-by-step explanation:
The central angle and the angle between the tangents are supplementary, so
x + 26° = 180° ( subtract 26° from both sides )
26 - 26 = 0
180 - 26 = 154
x = 154°
The value of the x will be 154°.
How to find the interior central angle?The central angle and the angle between the tangents are supplementary.
If there is a circle O with tangent line L intersecting the circle at point A, then the radius OA is perpendicular to line L.
So,
x + 26° = 180°
Subtract 26° from both sides;
x + 26 - 26 = 180 - 26
x = 154°
Hence, the value of the x will be 154°.
Learn more about tangents ;
https://brainly.com/question/10024457
#SPJ2
What is the solution to this system of linear equations?
Answer: To solve a system of linear equations graphically we graph both equations in the same coordinate system. The solution to the system will be in the point where the two lines intersect. The two lines intersect in (-3, -4) which is the solution to this system of equations.
Step-by-step explanation: hope this helps
Rose is 5 years older than Milton. Rose's age is 10 years less than four times Milton's age. The system below models the relationship between Rose's age (r) and Milton's age (m):
r = m + 5
r = 4m – 10
Which is the correct method to find Rose's and Milton's ages?
Which answer is correct??
Answer:
8
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
y
2
−3=1
1
2
y+−3=1
1
2
y−3=1
Step 2: Add 3 to both sides.
1
2
y−3+3=1+3
1
2
y=4
Step 3: Multiply both sides by 2.
2*(
1
2
y)=(2)*(4)
y=8
Answer:
C.
Step-by-step explanation:
Replace y with each value.
If y is 2 then the answer would be -2
If y is 4 then the answer would be -1
If y is 8:
8/2 = 4
4-3 = 1
Please mark brainliest if this answer helped.
Happy Learning!
pls answer this real answers if its right ill give brainliest
Answer: 7.5 batches
Step-by-step explanation:
60/6 is 10, so she needs to make 10 batches in total.
10-2.5=7.5
Answer:
no. of muffins = 60 muffins
no of muffins in each batch = 6 muffins
no. of batches which got over = 2.5 batches
no. of muffins baked = 6 * 2.5 = 15
no. of muffins to be baked = 60 - 15 = 45
no. of batches required to bake 45 muffins = 45 / 6 = 7.5
hope this answer helps you!
please mark as brainliest... thank you!
If the pointer in the figure is spun twice, find the probability that the pointer lands on yellow (Y) both spins.
Step-by-step explanation:
rewrite the equation 12x=13-x^2
Answer:
x^2+12x-13 = 0
Step-by-step explanation:
12x=13-x^2
=>12x+x^2=13-x^2+x^2
=>x^2+12x-13 = 13-13
=> x^2+12x-13 = 0
Answer:
x² + 12x - 13 = 0
Step-by-step explanation:
12x = 13 - x²
the standard form of an equation is written starting from the variable of the highest degree to the lowest. Hence after rearranging;
0 = 13 - x² - 12x
0 = -x² - 12x + 13
In an equation, the highest degree of a variable should preferably be postive hence the equation to the left side to remove the negative sign:
x² + 12x - 13 = 0
help please don’t know how to do this
Answer:
1. C,D
2. B,C,D
3. E
4.D
5.A,B,C,D
6.D
7.C,D
8.E
Step-by-step explanation:
Hope this helps ;)
Help plsss!
What are the zeros of f(x) = x2 - x - 20?
O A. x= -5 and x = 4
O B. x=-2 and x = 10
C. x= -10 and x= 2
O D. x = -4 and x = 5
Simplify (2x-9)(4x+1)
Answer:
the answer is 8x^2-34x-9
Answer:
8x^2 - 34x - 9
Step-by-step explanation:
:) ur thoughts on this???
Answer:
it looks dead ..............
Find the sum of 6x2 – 1 and x + 9.
Please find the attached photograph for your answer.
Help me pless!!!!!!!!!
Answer:
p = 7
Step-by-step explanation:
2p = 14
p = 14/2
p = 7
Can someone help?????
Answer:
i can Lol if you will help me after i help you
Step-by-step explanation:
put -6.5 in between -6 and -7. put -8.5 between -8 and -9. -6.5 is > than -8.5. hope this helped and i hope im right.
At their annual car wash, the science club washes 30 cars in 45 minutes. at this rate, how many cars will they wash in 1 hour?
Answer:
https://socratic.org/questions/at-their-annual-car-wash-the-science-club-washes-30-cars-in-45-minutes-at-this-r
Step-by-step explanation:
answer is in here yw
factor completely;
3x^2 - 28x + 49
Answer:
(3x-7) (x-7)
Step-by-step explanation:
Answer:
(3x-7) (x-7)
PLEASE MARK BRAINLIEST
Step-by-step explanation:
32−28+49
32−7−21+49
-----
32−7−21+49
(3−7)−7(3−7)
---->(3x-7) (x-7)
How do you do √1/3/5
Answer:
Write
1
as a fraction with a common denominator.
−
√
5
5
−
3
5
Combine the numerators over the common denominator.
−
√
5
−
3
5
Subtract
3
from
5
.
−
√
2
5
Rewrite
√
2
5
as
√
2
√
5
.
−
√
2
√
5
Multiply
√
2
√
5
by
√
5
√
5
.
−
(
√
2
√
5
⋅
√
5
√
5
)
Combine and simplify the denominator.
Tap for more steps...
−
√
2
√
5
5
Simplify the numerator.
Tap for more steps...
−
√
10
5
The result can be shown in multiple forms.
Exact Form:
−
√
10
5
Decimal Form:
−
0.63245553
…
()|[]√≥°
789≤θ
456
In the right triangle shown, m\angle Y = 30\degreem∠Y=30°m, angle, Y, equals, 30, degree and XY= 6XY=6X, Y, equals, 6.
Answer:
YZ = 6.93
Step-by-step explanation:
Find the complete question attached
From the diagram, we are to look for YZ
Given the following
XY = adjacent = 6
measure of m<Y = 30degrees
Required
YZ = hypotenuse
Using the SOH CAH TOA identity
Cos theta = adjacent/hypotenuse
Cos 30 = XY/YZ
Cos 30 = 6/x
x = 6/cos30
x = 6/0.8660
x = 6.93
Hence the length of YZ is 6.93
Finding X in triangle
Answer:
x is 5 cm as the entire base is 10 cm, so 10/2 = 5
Sally has a bag of apples that weighs 2 kilograms. How much does the bag of apples weigh in grams
Answer:
1Kg=1000g
sally has 2 kg apples in her bag
so 2kg ×1000g=2000g
Please help I’ll mark brainliest
Answer:
y= x-3
Step-by-step explanation:
use the slope formula which is y= m(slope)x + b(y intercept)
The slope is one, so you can just leave it as x, and the y intercept is -3 so you can plus that into the b.
Hope this helps :)
Write an equation for the line parallel to the given line that contains C.
C(1,4); y=−3x+1
Answer:The equation of a line is y = mx + b where y = y-coordinate, m = slope, x = x-coordinate, and b = y-intercept. (Remember that the slope is the steepness of a line and the y-intercept is the point where the line intersects the y-axis. The x- and y-coordinates are values of the points on the line of y = 3x - 1.)
Step-by-step explanation:
CO The town librarian bought a combination of new release movies on DVD for $20 Let x represent the number of new releases, and let y represent the number of of $500 and wanted to purchase as many DVDs as possible, which values of new-release and classic movies bought? 8. y = 45 o 10, y = 22 x = 16 = 22 O 18, y = 18
Answer:
O represents? Is it 0 or O?
Jim paid a gym membership fee of $50, plus $20 per month. Jim has paid a total of $290 to thegym. Which equation matches this situation?
Answer:
50+20x=290 or 50+(20x12)=290
Step-by-step explanation:
Answer:
50 + 20m = 290
Step-by-step explanation:
The answer is 50 + 20m = 290, because Jim paid a membership fee that was $50. Then each month he paid $20 because of his new membership. Jim never paid $50 a month, that was only his starter fee, but then gradually paid $20 every month so it would be 20m. Hope this helped.
First correct answer gets brainliest! All guesses will be reported. Tysm!!
Answer:
90 in
Step-by-step explanation:
360/60 = 6
15*6 = 90