Answer: See explanation
Step-by-step explanation:
Here's the complete question:
Kevin correctly answered 75% of his 32 test questions. how many questions would kevin have to answer to get more that 80% correct?
The number of questions he answered correctly will be:
= 75% × 32
= 75/100 × 32
= 3/4 × 32
= 24
He got 24 questions correctly.
To get more than 80% correctly, he will have to answer:
= 80% × 32
= 80/100 × 32
= 4/5 × 32
= 128/5
= 25.6 = 26
He will have to answer at least 26.
The point D(-1,-5) is rooted 180 counterclockwise around the origin what are the coordinates of the ruesulting pointe
Answer:
D'(1,5)
Step-by-step explanation:
If you rotate a point 180 counter-clockwise around the origin, then it makes the x and y coordinates negative. In this case, it would make the coordinates positive because both coordinates are already negative. The answer would be D'(1,5).
can i please have help? :) match each function to the correct organic compound. PROTEINS a. used for energy b, used for tissue repair and growth c. used for storing and transmitting genetic d. used for long - term storage
Answer:
b
Step-by-step explanation:
They are used for tissue repair and growth
Please help marking brainiest
Answer:
can you blow the image up or tell me what it says
Step-by-step explanation:
Find the slope-intercept form of an equation of the line perpendicular to the graph of x – 3y = 5 and passing through (0, 6).
Answer:
y=-3x+6
Step-by-step explanation:
x-3y=5
y=1/3x-5/3
slope of perpendicular line is -3 (opposite reciprocals)
y=mx+b
x=0 and y=6
6=3x+b
6=3(0)+b
6=b
y=-3x+6
Which of the following equations could you solve by first adding six and then dividing by negative three?
6 - 3 x = -9
+ 6 = -9
-3 x - 6 = -9
3 x - 6 = -9
Answer:
-3x - 6 = -9 (The third answer)
Step-by-step explanation:
When solving for x, you have to undo each operation. When solving -3x - 6 = -9, you have to undo the -6 first. To do this, add 6 to both sides. Then, you must undo the -3x. To do this, divide by -3 from both sides.
The ratio of tagged fish to untagged fish was 2 to 9. Ninety fish were tagged. How many fish were untagged
Answer:
405
Step-by-step explanation:
Since
2 : 9 = 90 : X
Then we know
9/2 = X/90
Multiplying both sides by 90 cancels on the right
90 × (9/2) = (X/90) × 90
90 × (9/2) = X
Then solving for X
X = 90 × (9/2)
X = 405
Therefore
2 : 9 = 90 : 405
9 A rectangle of perimeter 42 cm is
pcm long and q cm broad. If the
difference between the length and
breadth is 9 cm. find
pand q
the area of the rectangle
Answer:
The correct answer is = p = 15 and q = 6.
Step-by-step explanation:
Given:
Perimeter of rectangle = 42 cm
p - q = 9 cm
length = p
width = q
we know:
Perimeter of rectangle= 2(l+w)
solution:
42 = 2(P+q)
21= p+q
Difference of p and q = 9 cm.
Then, P+q=21 .... 1
P-q=9 ....2
Adding both 1 and 2
2P = 30
P= 15cm and
q = 15-9
= 6cm
the cylinder has a height of 30cm and radius 11cm. work out the total surface area of cylinder
Answer:
total surface area=2832.66 cm^2
Step-by-step explanation:
11^2(3.14)x2=area of ends=760.26 cm^2
11x2x3.14=circumference=69.08 cm
69.08x30=area of side=2072.4 cm^2
2072.4+760.26=2832.66 cm^2
First answer gets brainly!
Step-by-step explanation:
The smith family went out for dinner the price of the meal was $39.85 the sales tax was 8.1% of the price of the meal the tip was 17% of the meal and the sales tax how much did the smith family pay for the meal including tax and tip PLEASE HELP ILL GIVE LOTS OF POINTS
9514 1404 393
Answer:
$50.40
Step-by-step explanation:
Adding the tax multiplies the amount by 1+8.1% = 1.081.
Adding the tip multiplies the amount by 1+17% = 1.17.
Then the amount with tax and tip is ...
$39.85 × 1.081 × 1.17 = $50.40
The Smith family paid $50.40 for the meal.
if diameter of a circle is 28cm.find radius & circumference.
Answer:
Radius = 14 cm, Circumference = 88 cm
Step-by-step explanation:
d = 28 cm
r = 1 / 2 * 28
= 14 cm
Circumference = 2πr
= 2 * 22 / 7 * 14
= 2 * 22 * 2
= 88 cm
Hope it helps :)
Please mark my answer as the brainliest
Step-by-step explanation:
Diameter (d) = 28 cmRadius (R) = d /2 = 28 / 2 = 14 cmCircumference (C) = πd= 3.14 * 28= 87.92[tex]hope \: it \: will \: help[/tex]
It takes Kyle of an hour to walk of a mile. He walks 2 miles. How many hours did it take him?
of 1/5an hour
of 2/5an hour
of 3/5 an hour
of 4/5 an hour
forgot it has answer choices
Answer:
iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
Step-by-step explanation:
I believe the correct answer is 4/5 of an hour.
To land the plane on the runway the pilot must descend using the angle of depression on 4º,
The plane is currently at a height of 2764 feet above sea level. How many feet away is the
airplane?
A. X= 39,623.6 feet
B. X= 38,623.6 feet
C. X= 41,623.6 feet
D. X= 37,623.6 feet
Answer:
a
Step-by-step explanation:
can someone find x for me?
Answer:
Question 4: x = 106
Question 5: x = 118
Step-by-step explanation:
Question 4: The exterior angles of a triangle are going to add up to 360.
128 + 126 = 254
360 - 254 = 106
x = 106
Question 5: The exterior angles of a polygon add up to 360 (a quadrilateral is a polygon).
A right-angle = 90
90 + 34 = 124
360 - 124 = 236
236 / 2 = 118
x = 118
I hope this helps! :)
Find the missing value to the nearest hundredth.
Cos = 5/36
Answer:
Step-by-step explanation:
"cos" by itself is meaningless. It needs an argument.
cos(x°) = 5/36
x° = arccos(5/36) ≅ 82.2°
On a number line, what is the distance between -8 and -2?
A-10
B-6
C6
D10
Answer:
the answer is c) or 6. I hope it helps
Answer:
the answer is C.6
Step-by-step explanation:
when solving this you are going back up the number line... which is positve because you are adding, if the question was what is the distance from -2 to -8 it would be negitive 6 because you are going down the line!
A store buys an item for $12 and then marks the price up 55%. What is the
selling price of the item? *
Answer:
18.60
Step-by-step explanation:
12 x 155% = 12 x 1.55 = 18.60
[tex]\frac{3}{x+3} -\frac{4}{x-3}=\frac{5x}{x^{2} -9}[/tex]
Answer:
Step-by-step explanation:
[tex]\frac{3}{x+3}-\frac{4}{x-3}=\frac{3*(x-3)}{(x+3)(x-3)}-\frac{4(x+3)}{(x-3)(x+3)}\\\\=\frac{3*x-3*3}{(x+3)(x-3)}-\frac{4*x+4*3}{(x+3)(x-3)}\\\\=\frac{3x-9}{x^{2}-3^{2}}-\frac{4x+12}{x^{2}-3^{2}}\\\\=\frac{3x - 9 -(4x + 12)}{x^{2}-3^{2}}\\\\=\frac{3x-9-4x-12}{x^{2}-9}\\\\=\frac{-x-21}{x^{2}-9}\\\\[/tex]
[tex]\frac{3}{x+3}-\frac{4}{x-3}=\frac{5x}{x^{2}-9}\\\\\frac{-x-21}{x^{2}-9}=\frac{5x}{x^{2}-9}\\\\-x-21=\frac{5x}{(x^{2}-9)}*(x^{2}-9)\\[/tex]
-x - 21 = 5x
Add 'x' to both sides
-x -21 +x = 5x + x
-21 = 6x
6x = -21
x = -21/6
= -7/2
x = -3.5
Todo Binomio es polinomio falso o verdadero?
Answer:
Todo los binomios son casos especiales de polinomios.
Step-by-step explanation:
Answer:
verdadero eso puse yo :D
Find the value of x in the triangle shown below
Answer:
Step-by-step explanation:
Use the Pythagorean Theorem to solve for z. a^2 + b^2 = c^2, which a and b being the side lengths
9^2 + 12^2 = 81+ 144
81+144= [tex]225^{2}[/tex]
[tex]\sqrt{225}[/tex] = 15
z= 15
Answer:
C) x=15
Step-by-step explanation:
9^2+12^2=225
x=sq rt 225=15
-2 +2 = -3(x-4)
what is x
Answer:
x = 4
Step-by-step explanation:
Mark brainliest
El día 12 de diciembre en Moscú se registró una temperatura de 13° bajo cero, a esa misma hora, en buenos Aires hacía una temperatura de 25 grados sobre cero. ¿Qué diferencia térmica existía en ese momento entre las dos ciudades? A.38 B.-38 C.12 D.-12
Answer:
A. [tex]38\ \text{grados}[/tex]
Step-by-step explanation:
La temperatura en Moscú es de 13 grados bajo cero. Entonces, la temperatura es de -13 grados.
La temperatura en Buenos Aires es de 25 grados bajo cero. Entonces, la temperatura es de 25 grados.
La diferencia de temperatura entre las dos ciudades es
[tex]25-(-13)=38\ \text{grados}[/tex]
La diferencia de temperatura entre las dos ciudades en un momento dado es [tex]38\ \text{grados}[/tex].
Please Help with all questions
In January, Mr Tan's students read 20 books. In Febuary, they read 15 books. What is the percent increase or decrease in the number of books they read?
A. 5% decrease
B. 15% increase
C. 25% increase
D. 25% decrease
Answer:
D. 25% decrease
Step-by-step explanation:
Since it's clear that they read less books to find how much it decreased we multiply 100 with 15 then divide it by 20
100 × 15 ÷ 20 = 75 this result shows a 25% decrease.
What percent is...
50% of 50% of x
Answer:
25%
Step-by-step explanation:
Please help geometry people.
Answer:
Since QPR is an isoscelese triangle, QP and PR are congruent.
Therefore PR = 8
My guess for ST is z=1. So (5z = 5) and( 2z = 2). Then add 3 to 2 and you get 5. So ST = 5
Step-by-step explanation:
Hope this helps!!!
Please mark brainliest.
Quadrilateral ABCD is rotated 90° about the origin. What are the coordinates of quadrilateral A’B’C’D?
A. A (5,-5), B' (1.-5). C'(1.-2).
D'(5.-1)
B. A(-5, -5), B'(-5, -1) C'(-2,-1), D'(-1,-5)
C. A'(-5,5), B'(-1,5), C'(-1,2).
D'(-5,1)
D. A'(5, -5), B' (5. -1), C' (2-1),
D' (1.-5)
Answer:
A
Step-by-step explanation:
Answer:
A. A (5,-5), B' (1.-5). C'(1.-2).
D'(5.-1)
Step-by-step explanation:
I got right
Which answer choice shows an equation that correctly represents the relationship shown in the table below between Days, x, and Total Miles, y?
Answer:
y = 5x
Step-by-step explanation:
.......................
Laurie runs around a track that is 1_ 4 mile long. If she does 10 laps around the track, how far does she run?
Solve 4[10x + 5) = 260
Answer:
sry dont know
Step-by-step explanation:
Answe
its x=6
Step-by-step explanation: