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just olya [345]
3 years ago
7

A number is equal to the sum of half a second number and 3. The first number is also equal to the sum of one-quarter of the seco

nds number and 5 what which equation can show this x represent the second number
Mathematics
1 answer:
IrinaK [193]3 years ago
7 0
First number=1/2x+3
first number=1/4x+5
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Can someone help me! it would mean the world! and tysm! <3
Andreyy89

Answer:

90m

Step-by-step explanation:

AB = 18m

BC = AB + 9 = 18 + 9 = 27m

Perimeter = 2(AB + BC)

= 2( 18 + 27)

= 2 x 45

= 90m

5 0
3 years ago
I need help please!!
mina [271]

Step-by-step explanation:

11

\frac{ - 1}{5}  \times  \frac{4}{7}

\:  \:  \:  \:  \:  \frac{ - 4}{35}

12

\frac{ - 1}{2}  \times  \frac{4}{5}

\frac{ - 2}{5}

13

\frac{ - 3}{2}  \times  \frac{7}{ - 10}

\frac{21}{20}

14

\frac{1}{2}  \times  \frac{7}{8}

\frac{7}{16}

15

\frac{ - 9}{5}  \times   \frac{1}{2}

\frac{ - 9}{10}

16

\frac{ - 32}{9}  \times  \frac{1}{3}

\frac{ - 32}{27}

17

\frac{ - 2}{1}   \div \frac{ - 19}{5}

\:  \:  \:  \:  \:  \: \frac{ - 2}{1}  \times  \frac{5}{ - 19}

\:  \:  \:  \:  \frac{ - 10}{19}

18

\frac{1}{9}  \div  \frac{ - 4}{3}

\frac{1}{9}  \times  \frac{3}{ - 4}

\frac{ - 1}{12}

19

\frac{13}{7}  \div  \frac{23}{4}

\frac{13}{7}  \times  \frac{4}{23}

\frac{52}{161}

20

\frac{ - 37}{10}  \div  \frac{9}{4}

\frac{ - 37}{10}  \times  \frac{4}{9}

\frac{ - 74}{45}

5 0
3 years ago
Read 2 more answers
write 5 to the 8 power as a quotient of two exponential terms with the same base in four different ways. use negative and/or zer
shusha [124]

Answer:

jhfjdhsuhufhre

Step-by-step explanation:

a) 3x+2(41-5x)=33            as y=41-5x is given

3x+82-10x=33

-7x+82=33

-7x=33-82

-7x=-49        cut the negative signs as its LHS and RHS

x=49/7=7

b)-5x+3(3x-3)=3   as y=3x-3 is given

-5x+9x-9=3

4x-9=3

4x=3+9

x=12/4=3

c)4x+11-5x=9

-x+11=9

-x=9-11

-x=-2         cut the negative signs as its LHS and RHS

x=2

d) 5y+ -5-2y=-11      as x=-5-2y is given

3y+-5=-11

3y=-11+5

3y=-6

y=-6/3=-2

e)-5x-4(2x+1)=35       as y=2x+1

-5x-8x+4=35

3x+4=35

3x=35-4

3x=31

x=31/3

x=10.3

7 0
3 years ago
Josiah kept track of how many songs of each genre were played in an hour from his MP3 player. The counts are displayed in the ta
viktelen [127]
What table what 3 three choices?
5 0
3 years ago
Help me solve this equation and show work <br><br> 11d + 17b = 95 <br> d + b = 7
sweet-ann [11.9K]

Answer:

{d,b}={4,3}

Step-by-step explanation:

[1]    11d + 17b = 95

  [2]    d + b = 7

Graphic Representation of the Equations :

   17b + 11d = 95        b + d = 7  

 

Solve by Substitution :

// Solve equation [2] for the variable  b

 [2]    b = -d + 7

// Plug this in for variable  b  in equation [1]

  [1]    11d + 17•(-d +7) = 95

  [1]    -6d = -24

// Solve equation [1] for the variable  d

  [1]    6d = 24

  [1]    d = 4

// By now we know this much :

   d = 4

   b = -d+7

// Use the  d  value to solve for  b

   b = -(4)+7 = 3

Solution :

{d,b} = {4,3}

4 0
3 years ago
Read 2 more answers
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