change the first to
3x + y = 10
and the second to
x - y = 2
Antonia bought a set of dishes, a towel, and a candle at a housewares store. The set of dishes cost $35.02, the towel cost $21.43, and the candle cost $9.59 before any coupons or discounts.
She used a $0.50-off coupon on the candle, a $2.75-off coupon on the towel, and the set of dishes was on sale for 10% off the regular price. Which of the following best describes the amounts that Antonia saved?
Answer:
Antonia saved $5.39
Step-by-step explanation:
Candle:
$9.59 - $0.50 (coupon) = $9.09
Towel:
$21.43 - $2.75 (coupon) = $18.68
Dishes:
$21.43 x 10% = 2.143
$21.43 - $2.143 = $19.287, rounded to the nearest cent and it’s $19.29.
Calculate the amount of money saved by adding 0.50 + 2.75 + 2.143, which is 5.393. Round to the nearest cent and it will be $5.39.
A rectangle has an area of 513.5m2. One of the sides is 7.9m in length. Work out the perimeter of the rectangle.
I will give top answer to first person who can answer and explain.
Answer:
P=145.8m
Step-by-step explanation:
Answer: The perimeter is 145.8 square meters
Step-by-step explanation:
Area=513.5 square meters
513.5=l (length) times w (width)
513.5= 7.9 times w
513.5= 7.9w
(DIVIDE 513.5 AND 7.9 BY 7.9)
65= w
Perimeter= 2l + 2w
Perimeter=2(7.9) + 2(65)
Perimeter=15.8 + 130
Perimeter=145.8 square meters
If a delivery truck drives 150 miles in 6 hours and maintains that rate of speed,
what is the unit rate for miles per hour?
Answer: 25 miles per hour
Step-by-step explanation:
Speed=Distance/Time
The distance is 150, and the time is 6. So, all we need to do is divide 150 by 6, and we get 25 miles per hour. Hope this helped!
Answer:
Step-by-step explanation:
r = d/t
d = 150 miles
t = 6 hours
r = 150 / 6
r = 25 miles / hour
what property do you use first in an algibra expretion
Answer:
BIDMAS
Step-by-step explanation:
In order to solve equations correctly, we use BIDMAS ( Brackets, Indices, Division, Multiplication, Addition and Subtraction).
For example, if we have 5+2x7, we would multiply 2 by 7 first, then add 5 to the value.
Share £880 into the ratio of 3:1
Answer:
660:220
Step-by-step explanation:
Angle c is congruent to which angles?
A. 1 and 2
B. 2 and 3
C. 3 and 4
D. 1 and 4
Answer:
2, 3
Step-by-step explanation:
The average cost of a loaf of bread in 1950 was approximately 12 cents, and by 1990 the cost was about 70 cents. Which linear equation models the increase of the price of a loaf of bread? (Let x represent the number of years since 1900.)
1950:12
1990:70
70-12:58
58/40:1.45
1.45x40 :58
cada año le sumaban 1.45 a la barrita de cereal
saben que no me hagan caso ni yo se que acabo de hacer xd
Thus, the linear equation models the increase in the price of a loaf of bread will be 50x+12=70.
What is a linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
It is given that, the average cost of a loaf of bread in 1950 was approximately 12 cents, and by 1990 the cost was about 70 cents.
(Let x represent the number of years since 1900.)
The linear equation models the increase in the price of a loaf of bread will be.
y = bx + +c
70 = 50x + 12
The linear equation models the increase in the price of a loaf of bread will be 50x+12=70.
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what is 2+x/5+x=7/8?
Answer:
x = - [tex]\frac{15}{16}[/tex]
Step-by-step explanation:
2 + [tex]\frac{x}{5}[/tex] + x = [tex]\frac{7}{8}[/tex]
Multiply through by 40 ( the LCM of 5 and 8 ) to clear the fractions
80 + 8x + 40x = 35
48x + 80 = 35 ( subtract 80 from both sides )
48x = - 45 ( divide both sides by 48 )
x = - [tex]\frac{45}{48}[/tex] = - [tex]\frac{15}{16}[/tex]
Customers of a phone company can choose between two service plans for long distance calls. The first plan has a $28 monthly fee and charges an additional
50.08 for each minute of calls. The second plan has a $19 monthly fee and charges an additional $0.13 for each minute of calls. For how many minutes of calls
w the costs of the two plans be equal?
Answer:
180 minutesStep-by-step explanation:
Let x be the number of minutes of calls.
The first plan has a $28 monthly fee and charges an additional $0.08 for each minute of calls:
p(f) = 0.08x + 28The second plan has a $19 monthly fee and charges an additional $0.13 for each minute of calls:
p(s) = 0.13x + 19When p(f) = p(s) we get the following equation for x:
0.08x + 28 = 0.13x + 190.13x - 0.08x = 28 - 190.05x = 9x = 9/0.05x = 180Write 50 as a product of three primes
Answer: 2*5*5
Step-by-step explanation:
2*5=1-*5=50
2 and 5 are prime numbers.
Classify each number below as a rational number or an irrational number.
Answer:
Step-by-step explanation:
[tex]\sqrt{29} - Irrational[/tex]
[tex]\frac{10}{3} - Rational[/tex]
[tex]-2\pi - Irrational[/tex]
[tex]-52.(92) - Rational[/tex]
[tex]-\sqrt{81} - Rational[/tex]
(DO NUMBER 7 ONLY)
7. Tropical Storm Ava brought heavy rain to
Galveston, TX. The table shows the linear
relationship between the total inches of rainfall
and time in hours. Calculate the rate of change
of rainfall per hour.
12
6
18
24
Hours
Rain (inches)
13.5
a
18
4.5
Question 4
2.5 pts
A pitcher on a baseball team is practicing his fast ball and trying to ensure he hits the strike zone.
He consistently releases the ball at 5.5 feet high while he is pitching. The pitcher must aim for the
ball to hit the ground approximately 50.4 feet from the pitcher's mound in order to stay in the strike
zone. At what angle of depression, to the nearest tenth of a degree, must he release the ball?
Answer:
Step-by-step explanation:
I love you
PLS HELP WILL MARK YOU BRAINLIEST, NO FAKE ANSWERS!
Answer:
This would be A.
Step-by-step explanation:
Because
12[tex]b^{2}[/tex] - 6[tex]b^{2}[/tex] = 6[tex]b^{2}[/tex]
-3b - 3b = -6b
0 + ( -2 ) = -2
6[tex]b^{2}[/tex] - 6b - 2
Hope this helps!
There are 30 tickets numbered as 1, 2, 3, 4, 30 respectively. One random. What is the probability that the number on the ticket is a multiple 2 or 3
Answer:
2/3 or 66.66%Step-by-step explanation:
Out of 30 numbers, half is multiple of 2 and the third is multiple of 3.
We have 15 even numbers and 10 multiples of 3. Out of 10, half is even numbers and therefore counted twice.
So we subtract 5 to get:
15 + 10 - 5 = 20 numbersIf we chose one ticket at random the probability is:
P(2x or 3x) = 20/30 = 2/3 or 66.66%State the equation of the line described.
A line passes through the point (-2,8) and is perpendicular to the line y = -3x + 3.
thank you guys!
Answer:
y = mx + b
Since it is perpendicular to the given line, its slope is the negative reciprocal of the slope of the given line.
Slope of given line:
m0 = -a/b = -(-3) / (1) = 3
Slope of perpendicular line:
m = -1/3
y = (-1/3)x + b
Use the given point to find b.
2 = (-1/3)(3) + b
2 = -1 + b
b = 3
y = (-1/3)x + 3
Step-by-step explanation:
Answer:
Step-by-step explanation:
Perpendicular lines have their slope negative reciprocal
y= -3x +3 has the slope -3
y = (1/3)x +b is the line that is ⊥ so it has the slope (1/3)
The line passes trough the point (x=-2, y=8) so substitute the x and y to find b
8 = (1/3)(-2) +b, multiply (1/3)(-2) = -2/3 and add 2/3 on both sides
8+(2/3) = b, find the common denominator and add the fractions
[(3*8)+2 ]/3 =b
(26/3) = b
The equation of the line described is y= (1/3)x +(26/3)
Please solve the math problem for me... I will mark you brainliest
PLS HELP FOR BRAINLIEST JUST PUT THE LETTER
Answer:
10.) A
11.) D
12.) B
13.) C
Step-by-step explanation:
Please help me to solve this question as soon as possible
Answer:
set of M is {r,s,t}...........
A camera costs 115 Canadian dollars. If each Canadian dollar is worth 0.952 US dollars, how much will the camera cost in US dollars?
Answer:
$109.48
Step-by-step explanation:
If you multiply 115 by 0.952, it will give you the answer which it $109.48 !
Answer:
109.48
Step-by-step explanation:
you have to multiply
.952 × 115
javier went to cvs to buy bags of candy for his friends for halloween. he bought three more bags of reese's than lollipops and two fewer bags of starburst than lollipops. bags of lollipops cost $3.75 each, bags of reese's cost $5.50 each and bags of starburst cost $4.25 each. He spend a total of $48.50 and was not charged any tax. How many bags of lollipops did javier bought?
The number of bags bought by Javier will be 2.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that Javier bought three more bags of Reese's than lollipops and two fewer bags of starburst than lollipops. bags of lollipops cost $3.75 each, bags of Reese's cost $5.50 each, and bags of starburst cost $4.25 each. He spends a total of $48.50.
From the equations and solve them to get the number of lollypops.
R = L+3
L = S - 2
The equation for total cost will be,
3.75L + 5.5R + 4.25S = 48.5
3.75( s - 2) + 5.5( S + 1) + 4.25S
3.75S - 7.5 + 5.50S + 5.5 + 4.25 S = 48.5
13.5S = 48.5 + 2
13.5S = 50.2
S = 4
The number of lollypops will be,
L = S - 2
L = 4 - 2
L = 2
Therefore, the number of bags bought by Javier will be 2.
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Exponent: The number used to indicate how many times the base is a ___________________.
Answer:
An expression that represents repeated multiplication of the same factor is called a power. The number 5 is called the base, and the number 2 is called the exponent. The exponent corresponds to the number of times the base is used as a factor.
Can someone explain this to me pls
Answer:
sory i cant explain but tell anser c
Step-by-step explanation:
working simustainle 4 fudge machines finish a big job in 32 hours how long would it take if it had 4 times as more machines
Answer:
8 hours
Explanation:
32÷4=8
It takes 4 machines to do something in 32 hours. If you had 4 times more machines it would be 4 times faster.
There are 6 triangles and 5 squares.
What is the ratio of squares to
triangles?
Answer:
5:6
Step-by-step explanation:
Ratio means proportions.There are many rules of it
[tex]\\ \sf\longmapsto a:b::c:d[/tex]
[tex]\\ \sf\longmapsto \dfrac{a}{b}=\dfrac{c}{d}[/tex]
[tex]\\ \sf\longmapsto ad=bc[/tex]
A basketball team scored a total of 1470 points over the course of its 21-game season. 470 of the points were from 1-point baskets. The remaining points were either 2-point or3-point baskets.
There were 440 2-point or 3-point
baskets scored. How many of those 440 baskets were 3-point baskets?
Find 85% of the volume of a cube of side 12cm.
Answer:
10.2
Step-by-step explanation:
50% of 12= 6
10%= 1.2
30%= 3.6
5%= 0.6
50%+30%+5%= 6+3.6+0.6=10.2
plss help. brainliest for right answer
[tex]5667 \div 59 \\ \\ calculate \: \: the \: \: (approximate \: \: value) \\ \\ = 96.05085 \\ \\ \\ in \: \: alternte \: \: form \\ \\ = \frac{5667}{59} ,96 \frac{3}{59} \\ \\ \\ hope \: \: it \: \: helps[/tex]
Si un triángulo tiene de lados 4 y 5 metros y el ángulo entre ellos es de 30°, ¿Cuál es el área de la figura?
25 is the answer id ont know how to explain it
which expression is equivalent to -10x-10+2x+9?