servicexpressmaroc
General
Algebra
Geometry
Coordinate-geometry
Statistics
Calculus
servicexpressmaroc
servicexpressmaroc
Home
General
Algebra
Geometry
Coordinate-geometry
Statistics
Calculus
MATH SOLVE
Home
General
A metalworker has a metal alloy that is 30% copper and another alloy that is 55% copper. How many kilograms of each alloy should the metalworker combine to create 100 kg of a 50% copper alloy? The metal worker should use (blank) kilograms of the metal alloy that is 30% copper and (blank) kilograms of the metal alloy that is 55% copper. (show your work)
General
7 months ago
Help!!Kerry has a bag containing white and yellow marbles. Kerry randomly selects one marble from the bag, records the result, and returns the marble to the bag. The results of the first 65 selections are shown below. - A white marble was selected 41 times- A yellow marble was selected 24 times.Based on these results what is the probability that the next marble Kerry selects will be white?A. 41%B. 50%C. 59%D. 63%
General
7 months ago
Derrick adds equations A and B to solve this system of equations. What makes this approach a valid method in general for solving a system of equations?
General
7 months ago
Danielle earns a 7.25% commission on everything she sells at the electronics store where she works. She also earns a base salary of $650 per week. How much did she earn last week if she sold $4,400 in electronics merchandise? Round your intermediate calculations and answer to the nearest cent.
General
7 months ago
Alice wants to buy 3 pounds of veal at the grocery store, but the scales at the store only show weight in kilograms. If one kilogram is 2.20 pounds, how many kilograms of veal should Alice buy?
General
7 months ago
Plz help, It’s kinda easy I’m just kinda dumb ig :( 25+ points
General
7 months ago
An online furniture store sells chairs for $100 each and tables for $550 each. Every day, the store can ship at most 21 pieces of furniture and must sell no less than $5700 worth of chairs and tables. If 10 chairs were sold, determine the minimum number of tables that the the store must sell in order to meet the requirements. If there are no possible solutions, submit an empty answer.
General
7 months ago
During a walkathon, Team A walked a total of 6x+12 miles and Team B walks a total of 4x-7 miles. What is the difference in miles between the two teams?A) 2x-5B) 2x+5C)2x-19D)2x+19Please show work so I can understand the question Thanks!
General
7 months ago
Identify the transformation on the figure shown.A) reflection over the x-axis B) reflection over the y-axis C) rotation about the x-axis D) rotation about the y-axis
General
7 months ago
The quadratic function g(x) = a.ca + bx+c has thecomplex roots (-7+ 4i) and (-7 – 4i). You mayassume that a=1.What is the value of b? What is the value of c?
General
7 months ago
When graphing on the complex plane, which quadrant will the complex number 5+17i be found in?
General
7 months ago
Sketch the linear function f(x) = 2/3(3x + 1) − 6x. Which key feature of the graph is true?A) y-intercept (0,-4)B) x-intercept (2/3,0)C) x-intercept (1/6,0)D) y-intercept (0,-1/3)
General
7 months ago
There were 346 tickets purchased for a major league baseball game. The lower reserved tickets cost $9.50 and the upper reserved tickets cost $8.00. The total amountof money spent was $3224.00. How many of each kind of ticket were purchased?
General
7 months ago
Your Student Government Association decided to do a fundraiser to raisemoney for a field trip. They decide to sell t-shirts and sweatshirts. Theprofit for each t-shirt is $10 and the profit for each sweatshirt is $15.They want to sell 50 items at most. Compared to t-shirts, they want to sellat least half as many sweatshirts, with a profit of at least $500.after graphing What are the boundaries of the feasible region (i.e. the points that definethe region of solutions)? (Hint: There should be four points)Are there any non-viable solutions within the feasible regionHow many t-shirts and sweatshirts should they sell to maximize their profitWhat is the maximum profit they can make?
General
7 months ago
Which situation has a unit rate of $7?A Trevor spent $49 on 2 theater tickets.B Sally bought a pack of 5 t-shirts for $35.C Brandon bought 7 gallons of gas for $14.D Gina bought nail polish for $5 and a pack of gum for $2.
General
7 months ago
An investor invested a total of $2,800 in two mutual funds. One fund earned 5% profit while the other earned 3% profit. If the investor's total profit was $104, how much was invested in each mutual fund? The amount invested in the mutual fund that earned 5% was $(blank). The amount invested in the mutual fund that earned 3% was $(blank). (show your work)
General
7 months ago
The graph shows how many apples Erin can pick if she maintains a constant rate. What is the linear equation for this relationship? How many apples can she pick per hour?
General
7 months ago
A chemist has three acid solutions. The first solution contains 15% acid, the second contains 35% and the third contains 65%. He wants to use all three solutions to obtain a mixture of 228 liters containing 25% acid, using 2 times as much of the 65% solution as the 35% solution. How many liters of each solution should be used?
General
7 months ago
Brandon is an amateur marksman. When he takes aim at a particular target on the shooting range, there is a 0.1, point, probability that he will hit it. One day, Brandon decides to attempt to hit 10 such targets in a row.Assuming that Brandon is equally likely to hit each of the 10 targets, what is the probability that he will hit at least one of them?
General
7 months ago
Assume that in October of a particular year about 215 billion text messages were sent or received in the US, and the prediction is that in the next month it will be a 13% increase. About how many will be sent or received in November of the same year? Rounded to the nearest tenth of a billion.
General
7 months ago
Previous
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
Next