Answers
==========================================
Work Shown:
RS = RT
2z-15 = 9
2z = 9+15
2z = 24
z = 24/2
z = 12
The reason why RS is equal to RT in the first equation is because we have an isosceles triangle. Recall that any isosceles triangle has exactly two sides the same length, and the opposite base angles are congruent to one another. The congruent angles are indicated with the single arcs.
In short: the base angles S and T are congruent, so the opposite sides RS and RT are the same length. This leads to RS = RT.
Related Questions
Find the value of x in a triangle 68 27
Answers
Pls help and take your time cuz if I get this wrong I fail WILL MARK BRAINIEST
Answers
For Sunday brunch, Alisha is making a recipe that requires 8cups of milk. She has 3 quarts of milk. Does she have enough for the recipe?
Answers
Answer:
Step-by-step explanation:
She does have enough
Amir’s average math score for the first 4 tests of the school year is 88 Which equation can be used to calculate what Amir’s average must be on the next two tests so that his overall average is 90
Answers
Answer:
Equation that can be used = [tex]\frac{4(88)+2x}{6} = 90[/tex]
Step-by-step explanation:
Given that:
Amir's average on four tests = 88
Let,
x be the score on one test
For two tests = 2x
Sum of all scores = Average of four tests + Score of two tests
Sum of all scores = 4(88) + 2x
Total number of tests = 6
Overall average needed = 90
Now,
[tex]Average = \frac{Sum\ of\ quantities}{Number\ of\ quantities}\\90 = \frac{4(88)+2x}{6}\\\\\frac{4(88)+2x}{6} = 90[/tex]
Hence,
Equation that can be used = [tex]\frac{4(88)+2x}{6} = 90[/tex]
On a field trip, there are 3 chaperones for every 20 students. There are 92 people on the trip. Answer these questions. If you get stuck, consider using a tape diagram.
How many chaperones are there?
Answers
Answer:
14
Step-by-step explanation:
20 times four is 80 so we already have 12 chaperones because there are 3 chaperones for every 20 students.
20 divided by 3 is 6.6
We cannot have .6 of a chaperone so we round up to 7
And since 7 can only go into 20 two times
That means there are two more chaperones
2+12 is 14
There are 14 chaperones for the 92 students
(Hope this helps and hope im right)
Answer:
80(students)
12(chaperons)
Step-by-step explanation:
since total of 92 people in the trip including student and chaperon,add groups of 23 to become 92 or use this equation:
(20+3)×y=92
23y=92
y=92/23
y=4
therefore,
20×4=80(students)
3×4=12(chaperons)
Due today please help!
Answers
What’s the area and perimeter
Answers
Answer:
Step-by-step explanation:
1. ✔️Using Pythagorean Theorem, thus the missing length, x, would be:
x² = 19² - 17² = 72
x = √72
x = 8.5 (nearest tenth)
✔️Area = ½*b*h
b = 17
h = 8.5
Area = ½*17*8.5 = 72.25 units²
✔️Perimeter = 19 + 17 + 8.5 = 44.5 units
2. ✔️Using Pythagorean Theorem, thus the missing length, x, would be:
x² = 5² + 13² = 194
x = √194
x = 13.9 (nearest tenth)
✔️Area = ½*b*h
b = 13
h = 5
Area = ½*13*5 = 32.5 units²
✔️Perimeter = 13 + 5 + 13.9 = 31.9 unit
3. ✔️Using Pythagorean Theorem, thus the missing length, x, would be:
x² = 20² - 10² = 300
x = √300
x = 17.3 (nearest tenth)
✔️Area = ½*b*h
b = 17.3
h = 10
Area = ½*17.3*10 = 86.5 units²
✔️Perimeter = 17.3 + 10 + 20 = 47.3 unit
4. ✔️Using Pythagorean Theorem, thus the missing length, x, would be:
x² = 5² + 14² = 221
x = √221
x = 14.9 (nearest tenth)
✔️Area = ½*b*h
b = 14
h = 5
Area = ½*14*5 = 35 units²
✔️Perimeter = 14.9 + 14 + 5 = 33.9 unit
x
Equivalent ratios
ord
Select two ratios that are equivalent to 4: 18.
Answers
Name five fractions whose values are between 1/2and
7/8
Answers
Answer:
9/16 10/16 11/16 12/16 13/16
Step-by-step explanation:
Help me if you can
Answers
Answer:
she would be 6'2 aka 74 inches
Step-by-step explanation:
T = 4 S or S = 1/4 T
T = 4 S = 4 (18,5 inches)
Hope this helps!! Have an amazing day!!
HELP LOTS OF POINTS AND BRAINLIEST
Find each probability for one roll of a number cube:
12. P(4) 13. P(odd)
Answers
Answer:
12. P(4) = 1/6
13. P(odd) = 3/6 = 1/2
Step-by-step explanation:
hope this helps, pls mark brainliest :D
what kind of angles are 2 and 6
Answers
Answer:
A. corresponding
Step-by-step explanation:
Corresponding angles are angles that lie on top of two parallel lines.
Alternate interior angles are angles that lie on two sides of parallel lines and are mostly located with one angle up and one angle down.
Same side interior angles are angles within two parallel lines.
Answer:
corresponding angles
Step-by-step explanation:
∠ 2 and ∠ 6 are corresponding angles because each is in the same position ( upper right- hand corner ) in its group of 4 angles.
HELP ASAP PLEASE
Kristen Lynn sells college textbooks on commission. She gets 4% on the first
$5000 of sales, 8% on the next $5000 of sales, and 12% on sales over
$10,000. In July of 1997 Kristen's sales total was $13,500.
Answers
Answer:
Step-by-step explanation:
5000 at 4% =200 (5000*0.04)
5000 at 8% = 400 (5000*0.08)
3,500 at 12% = 420 (3500*0.12)
200+400+420 = 1020
Her commission is 1,020 dollars :)
a man buys a washing machine who price VAT(value added tax) is birr 175.its VAT is charged at 15% how much did the man actually pay?
Answers
Answer:
He actually paid a sum of $201.25
Step-by-step explanation:
We simply add the vat value to the cost of the machine
Mathematically, that’s (
175 + 15% of 175
= 175 + (15/100 * 175)
= 175 + 26.25
= $201.25
What is the equation in standard form using integers y+4=3/4(x+7)
Answers
Please I need help ............
Answers
Answer:
Dileah is correct
Step-by-step explanation:
6 is greater than 5 but yet its 6/5 and makes it an improper fraction. Its an enlargement
Answer:
Delilah
Step-by-step explanation:
It is an enlargement since the x and y values was multiplied by a number greater than 1.
B^10/B^2=B^5 True or false
Answers
Answer:
True
Step-by-step explanation:
................
What is the value of 12⁰?
Answers
Answer:
1
Step-by-step explanation:
Anything to the power of zero is = 1
Answer: the answer is 1
Step-by-step explanation:
Factor the expression 4x + 32. Explain each step you
take in the process.
Answers
Answer:
4x + 32 = 4x + 4.8 = || 4. (x + 8) ||
Step-by-step explanation:
Solve x^2- 2x - 4 = 0
Answers
Answer:
[tex]\displaystyle x= 1\pm \sqrt{5}[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Standard Form: ax² + bx + c = 0Quadratic Formula: [tex]\displaystyle x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}[/tex]Step-by-step explanation:
Step 1: Define
x² - 2x - 4 = 0
Step 2: Identify Variables
a = 1
b = -2
c = -4
Step 3: Solve for x
Substitute [QF]: [tex]\displaystyle x=\frac{2\pm\sqrt{(-2)^2-4(1)(-4)} }{2(1)}[/tex]Exponents: [tex]\displaystyle x=\frac{2\pm\sqrt{4-4(1)(-4)} }{2(1)}[/tex]Multiply: [tex]\displaystyle x=\frac{2\pm\sqrt{4+16} }{2}[/tex]Add: [tex]\displaystyle x=\frac{2\pm\sqrt{20} }{2}[/tex]Simplify: [tex]\displaystyle x=\frac{2\pm 2\sqrt{5} }{2}[/tex]Factor: [tex]\displaystyle x=\frac{2(1\pm \sqrt{5}) }{2}[/tex]Divide: [tex]\displaystyle x= 1\pm \sqrt{5}[/tex]Answer:
yes
Step-by-step explanation:
Nhich relationships could have a negative correlation? Select three options.
Number of hours on video games and test scores
Speed of a car and minimum stopping distance
average running speed and total race time
adult's head circumference and age
outside temperature and amount of a heating bill
Answers
Answer:
A,C,E
Step-by-step explanation:
Just took teh Semester Exam for Math, got the answer correct
Sry im 2 days late lol
Answer:
ITS A,C,E
Step-by-step explanation:
just did a exam lol
Find the value of x and fill in the table below.
Answers
2) 132= 54 plus angle n
3) 180-132=48 (angles on a straight line equal to 180 degrees)
3x+102=180
3x= 78
x is 26 degrees
Which is the factored form of 6x^3 + 8?
Answers
target sells 24 bottles of water for $3 and 36 bottles of water for $4 which is the better buy and by how much?
A 24 bottles for $3 by 1.5 ¢ per bottle
B 24 bottles for $3 by 70 ¢ per bottle
C 24 bottles for $3 by 75 ¢ per bottle
D 36 bottles for $4 by 1.4 ¢ per bottle
Answers
Solve the inequality 2.5d+11.4<-1.3d solve the inequality
Answers
Answer:
d < -3
Step-by-step explanation:
2.5d+11.4<-1.3d
3.8d+11.4<0
3.8d<-11.4
d < -3
Just isolate and solve for x and remember, what you do to one side, you must do to the other.
Hope this helps!
Answer:
[tex]d < -3[/tex]
Step-by-step explanation:
Move the constant to the right-hand side and change its sign:
[tex]2.5d < - 1.3d - 11.4[/tex]
Move the variable to the left-hand side and change its signs:
[tex]2.5d + 1.3d < 11.4[/tex]
Collect like terms:
[tex]3.8d < - 11.4[/tex]
Divide both sides of the inequality by 3.8:
[tex]3.8 \div - 11.4 = - 3[/tex]
Therefore, the answer is d < -3.
A recipe for 6 people uses 250g
of flour. How much flour will be
needed to make the recipe for 15
people?
Answers
Answer:
625
Step-by-step explanation:
250/6 =41.6666666667
41.6666666667x15 = 625
how many 3/5s are in 4/3s
Answers
Answer:
how does this question make any sense
4/3s is 1 and 1/3
figure out how many 3/5ths go into that
Step-by-step explanation:
Answer:
This dont make sense
Step-by-step explanation:
Find the measure of angle A.
75°
x + 53
+68
Answers
Answer:
Step-by-step explanaton:
David made $216 for 12 hours of work. At the same rate, how many hours would he have to work to make $306?
Answers
Answer:
17 hours
Step-by-step explanation:
216/12 = $18 per hour
306/18 = 17 hours.
Hope this helps! :)
Answer:
Is 17 hours the correct
HEEEEEELP
A souvenir store sells postcards and magnets.
Each postcard costs $1, and each magnet costs $3.
If Annalee purchased a total of 10 postcards and
magnets that cost a total of $22 before tax, how many
magnets did she purchase?
A) 3
B) 4
C) 5
D) 6
4
Answers
Answer:
6
Step-by-step explanation:
Answer:
D) 6
Step-by-step explanation:
Assumption method:
Assume all are postcards.
Total cost of postcards = 10 × $1
= $10
Difference between total = $22 - $10
= $12
Difference between subjects = $3 - $1
= $2
No. of magnets = $12 ÷ $2
= 6