Answer:
The cost of an orange tree is $ 6 while that of a grapefruit tree is $
Step-by-step explanation:
Let x be the cost of an orange tree and y be the cost of a grapefruit tree. In the first week, the citrus grower purchased 25 orange trees and 20 grapefruit trees for $290, so 25x + 20y = 290 (1).
In the next week, the grower bought 20 orange trees and 30 grapefruit trees for $330. So, 20x + 30y = 330 (2)
From (2) y = (330 - 20x)/30 = (33 - 2x)/3
substituting y into (1), we have
25x + 20[(33 - 2x)/3] = 290
multiplying through by 3, we have
75x + 20(33 - 2x) = 870
expanding the bracket, we have
75x + 660 - 40x = 870
collecting like terms, we have
75x - 40x = 870 - 660
35x = 210
dividing both sides by 35, we have
x = 210/35
x = 6
substituting x = 6 into y, we have
y = (33 - 2x)/3
= (33 - 2(6))/3
= (33 - 12)/3
= 21/3
= 7
So the cost of an orange tree is $ 6 while that of a grapefruit tree is $ 7.
I REALLYYYYY NEED HELP PLSSSS NO DUM ANSWERS I SERIOUSLY NEED HELP
Answer:
First blank: 869x
Second blank: 17,575
D
Step-by-step explanation:
Men (f): 389x + 7500
Women (g): 480x + 10075
Equation: (f + g)
Equation: 389x + 7500 + 480x + 10075
Combine like terms
869x + 17575
Equation: 869x + 17,575
1.008 +7.
2-5.92 +2.34
Answer: 4.628
Step-by-step explanation:
solve for 2x+2(x−5)=6
Answer:
x=4
Step-by-step explanation:
(05.05) Which of the following inequalities matches the graph? (1 point)
Answer: Choice C. [tex]y \ge -1[/tex]
==========================================================
Explanation:
The boundary line is a solid line and it's horizontal. Every point on the boundary line has y coordinate -1. So y = -1 is the equation of the boundary line. We can write it as y = 0x-1.
The shading is above the boundary line, so the inequality is [tex]y \ge -1[/tex]
Any point (x,y) in the shaded region has y coordinate that is y = -1 or greater.
For example, the point (0,2) in the shaded region has y coordinate y = 2, and it satisfies the inequality [tex]y \ge -1[/tex] because [tex]2 \ge -1[/tex] is a true statement.
Note: the boundary line is solid, so any point on the boundary line is part of the shaded solution set. This is due to the "or equal to" as part of the inequality sign.
HELP ASAP
6+ x - y + 10=
Answer:
x-y+16
Step-by-step explanation:
add the like terms, 6 and 10 which is 16. since the variables are not like terms, thats your final answer. hope it helped :)
PLEASE HELP TIMED TEST!!!
Which interval below correctly describes the domain of the graph f ( x ) ? a.) (-∞,3} b.) [-3,5] c.) [-5,3] d.) (-∞,∞)
Answer:A
Step-by-step explanation:
If they both go down from 3 then it is 3 and then -infinity.
(this is my best answer without a picture, hope you get it right!)
Mrs. Russell bought a computer for $250. The tax was 7%. What was the total cost of the computer with tax?
Answer:
$267.5
Step-by-step explanation:
7% of 250=17.5. 250+17.5=267.5
Answer:
267.5
Step-by-step explanation:
250+7%=267.5
Hope this helps :)
An expression is shown below:
the square root of 32 plus the square root of 2
Which statement is true about the expression?
the square root of 32 plus the square root of 2
It is rational and equal to 4 times the square root of 2.
It is irrational and equal to 4 times the square root of 2.
It is rational and equal to 5 times the square root of 2.
It is irrational and equal to 5 times the square root of 2.
Answer:
C or D...
im guessing
Answer:
√32=√(16*2)=4√2
4√2 + √2=5√2
That is why is irrational
Step-by-step explanation:
20 POINTS!!!
Which day and time represents the best predicted time during this week to explore the tide pools in Point Loma?
What is the difference between the highest tide predicted on this table and the lowest tide predicted on this table?
What is the difference between the highest and lowest tides predicted on Friday, January 31?
Ryan and his dad plan to go tide pooling on Saturday morning around 11:30am. Did they pick a good time to go? Is there a better time on Saturday that they should go instead? Explain your reasoning using complete sentences.
Answer:
I'm doing this project rn I'll help you as soon as I'm done! Did you do the other sections already?
Step-by-step explanation:
HELPPP NEED THIS IN THE NEXT 10 MINSS!!!!
Which of the following is a function?
Answer:
this is a function
Step-by-step explanation:
Answer:
I think it’s -3
Step-by-step explanation:
JEJEISHEVEHSUEHRH PLEASE ✋✋✋✋
on aleks, need help asap :(
Who earns more per hour, and what is his or her pay rate?
Which of the following expresses the possible number of positive Icai
solutions for the polynomial equation shown below?
5x° + x2 - 7x+ 28 = 0
O A. Zero
B. One
C. Two or zero
D. Three or one
9514 1404 393
Answer:
C. Two or zero
Step-by-step explanation:
The signs of the polynomial terms are: + + - +.
There are two sign changes, one from + to -, and the other from - to +. The two sign changes means the number of positive real roots will be a maximum of 2. Any even number of roots may be complex, so will not be real. That is, the number of positive real roots may be 2 or 0.
2x + 5 = 13
What is the answer and the steps for this equation
2x + 5 = 13
2x = 13 - 5
2x = 8
*divide both sides by 2*
x = 4
Please I dont wanna fail :( help me
Answer:
f = 132 degrees
Step-by-step explanation:
The total angle measure of this is 360 degrees. We know 2 of the angles, so subtract them from 360 to get 198. The sum of f and g must equal 198 degrees. Since we know that f = 2g, we can divide 198 by 3 to get 66. So, we know g = 66. To find f, multiply 66 by two to get 132. So, g = 66 and f = 132
7th grade, 25 points plus brainliest to the correct answer, no point theives please, the question is in the picture.
Answer:
I don't see any attachement or a picture or anything
Step-by-step explanation:
The answer is D
Which of the following is a geometric series? 0.1 + 0.3 + 0.5 + 0.7 1 + 3 + 9 + 27 19 + 17 + 15 + 13 0.4 + 0.9 + 1.5 + 2.2
The series 1 + 3 + 9 + 27 is a geometric series because the common ratio is 3 option second is correct.
What is a sequence?It is defined as the systematic way of representing the data that follows a certain rule of arithmetic.
As we know, the geometric series has a common ratio:
If a, b, c, d, e.....
is in the GP then,
b/a = c/b = d/c = and so on
We have a series:
0.1 + 0.3 + 0.5 + 0.7
0.3/0.1 ≠ 0.5/0.3
The above sequence is not a geometric series.
1 + 3 + 9 + 27
3/1 = 9/3 = 3
The above sequence is a geometric series.
19 + 17 + 15 + 13
17/19 ≠ 15/17
The above sequence is not a geometric series.
0.4 + 0.9 + 1.5 + 2.2
0.9/0.4 ≠ 1.5/0.9
The above sequence is not a geometric series.
Thus, the series 1 + 3 + 9 + 27 is a geometric series because the common ratio is 3 option second is correct.
Learn more about the sequence here:
brainly.com/question/21961097
#SPJ2
Could use some help please
2x+y=-4
-3y=2x+12
Answer: 3y=12−2x 3 y = 12 - 2 x
Step-by-step explanation:
Answer:
Let
2x+y=-4——(1)
-3y=2x+12
2x+3y=-12—-(2)
Deduct eqt 1 from 2
(2x+3y=-12)
-(2x+y=-4)
2y=-8
y=-4
Put y=-4 into eqt 1
2x-4=-8
2x=-8+4
2x=-4
Divide both sides by 2
x=-2
:. x,y= -2,-4
Step-by-step explanation:
A bag of chips costs $3.79 including tax. Mr. Connor wants to purchase chips for his class and has a $15 budget. Write an inequality to solve for the number of bags of chips Mr. Connor can purchase with his budget. (2 points)
$1400 is divided between two accounts. One account pays $3%$ interest, while the other pays $4%$. At the end of the interest period, the interest earned was $50. How much was invested in each account?
Answer:
$60
Step-by-step explanation:
one of them got $40 and the other one $20
anyone good at solving rational zeros
Answer:
sort of
Step-by-step explanation:
I need help with this question from edulastic please.
Answer:
i think it is the one you c
Step-by-step explanation:
this is for freckle which I hate can someone help?
Answer:
The answer is B. 26 miles per hour.
Step-by-step explanation:
13+13=26
X goes by an hour.
You are given two vertical angles. The first angle measures 30 degrees.
The second angle measures x + 10 degrees. What is the value of x?
Answer:
20 degrees
Step-by-step explanation:
vertical angles are congruent:
x+10=30
1.) Determine if the coordinate points represent a function. (1.3). (2.6). (3.9). (4. 12). (5.15
O Function
O Not a Function
O both
Answer:
Function
Step-by-step explanation:
These coordinates do represent a function. For a relation to be a function every y-value must have an x-value, this means x's cannot repeat. In this relation x's never repeat, they simply increase by one every time. Therefore, this is a function.
find the value of the expression below x=2 3x
PLEASE HELP AND SHOW WORK
Answer:
38) Angle 2 = 32°; angle 1 = 32°; angle 3 = 110°
39) Angle 3 = 81°; Angle 2 = 28°; angle 1 = 71°
Step-by-step explanation:
38) angle 2 = 180 - (110 + 38)
This is because sum of angles in a triangle is equal to 180°. Thus;
Angle 2 = 32°
Angle 1 = 38° due to the postulate that alternate interior angles are equal
Angle 3 = 110° due to corresponding angles postulate
39) Angle 3 = 81° due to the postulate that alternate interior angles are equal
Angle 2 = 28° due to the postulate that alternate interior angles are equal
Angle 1 = 180 - (81 + 28) = 71° due to the fact that angles in a triangle sum up to 180°
Yoo 9th grade math please help me out My grade is slowly slipping
Answer: I'm pretty sure it would be no
Step-by-step explanation:
Answer:
No
Step-by-step explanation:
y_<_2x
4_<_2(3)
4_<_6
true
y > x + 4
4 > 3 + 4
4 > 7
false