Answer: x= -6; y= -1
Step-by-step explanation:
-4x + y = 23
4x - 9y = - 15
-4x + y = 23
y = 23 + 4x [Add 4x to both side]
4x - 9(23 + 4x) = - 15
4x - 207 - 36x = - 15
-32x - 207 = -15
-32x = 192 [Add 207 to both side]
x = -6 [Divide -32 from both side]
-4x + y = 23
-4(-6) + y = 23 [Plug in -6 for x]
24 + y = 23 [Subtract 24 from both side]
y = -1
Mary Lost 30 pounds. Before her diet she weigh 180 pounds. What is the percent of change 
Answer:16.7%
Step-by-step explanation:
150 x
_____=______
180 100
150(100)=180(x)
15000=180x
__________
180 180
x=83.3 repeated
100-83.3=16.7
Find the measure of A in Triangle ABC.
Since we are given
information here, we
can use the following equation to solve for m angle A.
Answer:
First part= SSS
Second part=0.2
Third part=78
Answer:
A.
On edge.
Step-by-step explanation:
Find the value of the marked angles in each of the following ( see image ).
Please show workings.
The only given angles are 62° and 85°.
The angle to look for is marked by “))”
Answer:
(180-62)
118
180-118=62
180-85=95
180-(62+95)
180-157
23
Answer:
23°Step-by-step explanation:
The inscribed is the cyclic quadrilateral.
The opposite angles are supplementary in cyclic quadrilaterals.
The angle opposite to 85° is:
180° - 85° = 95°The missing angle of the triangle is:
180° - (62° + 95°) = 23°Please answer this below Question # 15
Answer:
[tex]c. \: 5x - 2y = 10 \\ \: \: \: \: \: 10x - 4y = 20 \\ [/tex]
if your heat beats 75times per minute how many time does it beat in 5 hours
Answer:
This is your answer . IfI'm right so,
Please mark me as brainliest. thanks!!!
write 2.4 x 10 to the power of -3 in standard form
Answer:
Step-by-step explanation:
[tex]2.4 \times10^{-3}=\frac{24}{10} \times \frac{1}{10^3} =\frac{24}{10^4} =\frac{24}{10000} =0.0024[/tex]
A city has a population of 320,000 people. Suppose that each year the population grows by 7%. What will the population be
after 15 years?
Use the calculator provided and round your answer to the nearest whole number.
Barak spent $20 at the mall. This represents 16% of the money he earned working at the pizza parlor last week. How much money did Barak earn at the pizza parlor last week?
Answer: Amount of Money Barak earned last week =$125
Step-by-step explanation:
Amount of money Barak spent= $20
Amount of money spent = 16% of Money earned (X)can be represented as
16% x X =20
0.16 x X =20
X = Money earned last week = 20/ 0.16= $125
Which statement about 7/3 is true
A. 7/3 = 7 x 3/1
B. 7/3 = 7 x 3/3
C. 7/3 = 7 c 1/7
D. 7/3 = 7 x 1/3
Answer:
D, the rest are not true about the statement 7/3
Answer:
D. 7/3 = 7 x 1/3
Step-by-step explanation:
[tex]7 * \frac{1}{3} = \frac{7}{1} * \frac{1}{3} = \frac{7}{3}[/tex]
q/19 < 4
pls be correct if you type it !!!!
Answer:
q<76
Step-by-step explanation:
hope this is the answer you were looking for!
List five examples of materials and equipment that can be used for math activities.
Answer:
compass
protecter
scale
pencil
Hence, the fives examples are explained.
What is the mathematics?
Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes
(1) Ruler
(2) Set-squares
(3) Compass
(4) Divider
(5) Protactor
Hence, the fives examples are explained.
To know more about the maths
https://brainly.com/question/12789483
#SPJ5
Write a rational number between -3 and -4.
Answer:
-3.25
Step-by-step explanation:
Answer:
-3.25
Step-by-step explanation:
sorry I'm wrong.....im not that good at math
True or False: The first step to solving for the volume of a sphere is to substitute or replace what you know from the question.
True
False
Answer:
True
Step-by-step explanation:
Turn away weight loss challenge your friend goes from one $125 lb to 100 lb what was the percent weight loss
PLEASE HELP
show work for problem
Answer:
[tex]tan(x)-1 =30/45[/tex]
Step-by-step explanation:
put that in your calculater
Please help if possible :)
Answer:
4.5
Step-by-step explanation:
any value of XYZ divided by the corresponding value from RST = 4.5 the scale factor
please help
ABC = ADC . Find y.
Answer:
y is 7
Step-by-step explanation:
DONT ANSWER IF YOU DONT KNOWWWWWW . Click All that apply:)
Answer:
1.Location
2.shape
3.orientation
Step-by-step explanation:
Answer: Orientation
Step-by-step explanation:
Basically how the shape looks like on a graph for example a right side up triangle would look different from a upside down triangle
Can someone tell me a proportion to convert 5 pounds to ounces asap. pls someone reply quick
Answer:
5 pounds = 80 ounces
Hope it helps!!!
1. Ryan is washing windows on a skyscraper. He lowers himself six times,
going down an equal distance each time. In all, Ryan lowers himself 48 ft.
What integer represents the change in Ryan's position each time he lowers
himself? *
Answer:
Ryan went down a total of 8 times
Step-by-step explanation:
He goes down 6 times 48/6 = 8
Pig E Bank brags a 4% interest rate compounded annually. If Mr. Ant wants to invest $5,000
on his first born child's birthday and surprise him with the account on the child's 40th
birthday. Write and solve an equation to determine the amount in the account when his
child turns 40.
hii! i just wanted to say hope you're having a fantastic day and hope that things are going well (: stay strong and stay safe!
HELP ME PLZZ I NEED HELP WITH THIS
Answer:
25 + 11 hope this helps
Step-by-step explanation:
answer is the third one
Help plz helpppppppppppppp
Answer:
A = 45 cm²
Step-by-step explanation:
The area (A) of a trapezium is calculated as
A = [tex]\frac{1}{2}[/tex] h( b₁ + b₂)
where h is the height and b₁, b₂ the parallel bases
Here h = 5, b₁ = 10 and b₂ = 8 , then
A = 0.5 × 5 × (10 + 8) = 0.5 × 5 × 18 = 45 cm²
. Given that ∆FUN ≅ ∆TEA, identify the congruent corresponding parts. < N ≅ < ___(name the letter)
Given:
[tex]\Delta FUN\cong \Delta TEA[/tex]
To find:
Identify the congruent corresponding parts of [tex]\angle N\cong \angle \_\_[/tex].
Solution:
We have,
[tex]\Delta FUN\cong \Delta TEA[/tex]
We know that corresponding parts of congruent triangles are congruent.
[tex]\angle F\cong \angle T[/tex]
[tex]\angle U\cong \angle E[/tex]
[tex]\angle N\cong \angle A[/tex]
Therefore, the required corresponding part is [tex]\angle N\cong \angle A[/tex].
Find the equation of a line that passes through the point (-2, -1) and is
perpendicular to the line with equation y=-2x+8.
Answer:
2y-x=0
Step-by-step explanation:
Please mark as brainliest
Bella can run a mile in 9.54 minutes. Linda can run a mile in 8.22 minutes. How much faster can Linda run than Bella? Justify your reasoning.
Answer:1.16 times
Step-by-step explanation:
Given
Bella can run a mile in 9.54 minutes
Linda can run a mile in 8.22 minutes
We know, [tex]\text{distance=speed}\times\text{ time}[/tex]
Speed of Bella, for running a mile is
[tex]\Rightarrow v_b=\dfrac{1}{\frac{9.54}{60}}=\dfrac{60}{9.54}\\\\\Rightarrow v_b=6.29\ mph[/tex]
Speed of Linda, for running a mile is
[tex]\Rightarrow v_l=\dfrac{1}{\frac{8.22}{60}}=\dfrac{60}{8.22}\\\\\Rightarrow v_l=7.29\ mph[/tex]
So, Linda is faster than Bella, as her speed is more compared to Linda.
Linda is [tex]\frac{9.54}{8.22}=1.16[/tex] times faster than bella
i need the answer for this question
Answer:
z=-13.9
Hope this helped!!
Answer: z= 4.1
Step-by-step explanation:
Grade 10 math help please show work
Answer:
∅ = 1.91°
Step-by-step explanation:
sin ∅ = 10/300 = 0.0333
∅ = 1.91°
A runner covers a distance of 1200m with an average speed of 4m/s. How long does it take to run this distance? Then calculate the time in min.
Be the first answer for Brainliest, please I need help.
Answer:
5mins
Step-by-step explanation:
well i did 1200 divided y 4 then divided that answer by 60
I WILL GIVE BRAINLEST!!! 20 POINTS!!!
If tomatoes cost 5.30 per pound and i have 9.7 pounds how much would i pay?