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zvonat [6]
3 years ago
6

Neeeeeeeeeeeeeeeed Helppppppppppppp

Mathematics
1 answer:
allsm [11]3 years ago
6 0
Because a ║b you can say: 
-60 -2x = -70 -4x ⇒ -2x + 4x = -70 + 60 ⇒ 2x = -10 ⇒ x = -5 :)))
i hope this is helpful
have a nice day 
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n Juanita's Art History class Quizzes are worth 15% of the final grade, Exams are worth 55%, Projects are worth 25%, and Attenda
kvv77 [185]

Answer:

90.75%

Step-by-step explanation:

Given;

Of the total final score;

Quizzes = 15%

Exam = 55%

Project = 25%

Attendance = 5%

Resolving the values of each section of the total score;

she had perfect attendance to class. 100% attendance;

Attendance = 5% of total score

She got extra credit on her project with a score of 26 out of 25 possible points.

Project = 26/25 × 25% = 26%

80, 85, and 96 on the first three exams,each worth 100 points;

Total exam score = 80+85+96 = 261 out of 300

Of the total score;

Exam = 261/300 × 55% = 47.85%

At mid-semester Juanita scored 119 out of 150 points on quizzes.

Quizzes = 119/150 × 15% = 11.9%

Total exam score is;

= Quizzes+exam +project+attendance

= 11.9% + 47.85% + 26% + 5%

= 90.75%

3 0
3 years ago
Find the simple interest of $2300 invested at 7.5%for 10years
san4es73 [151]

Use the formula I = Prt. Plug $2300 into P.

Plug 7.5% (decimal form is 0.075) into r.

Plug 10 into t.

Your simple interest after 10 years is $1725

6 0
3 years ago
What single decimal multiplier would you use to decrease by 2% followed by a <br> 3% decrease?
umka21 [38]

2% decrease= 0.98

3% decrease = 0.97

7 0
3 years ago
What if we say that x's value is 2. Do 2x and x to the second power have the same value?
Basile [38]
Yes. Substitute 2 for x.

We have
2x=2(2)=2^2=4
x^2=2^2=2(2)=4
8 0
3 years ago
Help help help please omg
MariettaO [177]

X=2

Answer:

Both cards would have equal value when both have purchased 2 Pizzas each

Step-by-step explanation:

since the number of pizzas purchased is X

70-(20*X) =X*15

-20X-15X=-70

-35X = -70

X =2

4 0
2 years ago
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